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How exact are monthly means? The Results..

Santa Barbara/FAA Airport - 1984 to 1986

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       12.4       [12.2]        12.0639      12.1      0.3*
  2       12.4       [12.4]        12.4082      12.4      0.0 
  3       14.6       [14.6]        14.7050      14.7     -0.1 
  4       15.2       [15.3]        15.3426      15.3     -0.1 
  5       17.8       [17.6]        17.3775      17.4      0.4*
  6       17.4       [17.4]        17.3889      17.4      0.0 
  7       19.7       [19.6]        19.1129      19.1      0.6*
  8       21.3       [21.2]        20.9677      21.0      0.3*
  9       22.7       [22.6]        22.0139      22.0      0.7*
 10       16.5       [16.5]        16.7100      16.7     -0.2 
 11       12.8       [12.7]        12.8372      12.8      0.0 
 12       10.4       [10.6]*       10.6325      10.6     -0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.7

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       10.2       [10.2]        10.0986      10.1      0.1 
  2       11.0       [10.9]        10.9755      11.0      0.0 
  3       11.6       [11.6]        11.7279      11.7     -0.1 
  4       14.3       [14.3]        14.1443      14.1      0.2*
  5       14.2       [14.1]        14.3182      14.3     -0.1 
  6       17.2       [16.9]*       16.5093      16.5      0.7*
  7       20.2       [19.9]*       19.3735      19.4      0.8*
  8       19.1       [18.9]*       18.5297      18.5      0.6*
  9       18.2       [18.1]        18.0733      18.1      0.1 
 10       16.3       [16.3]        16.1850      16.2      0.1 
 11       12.1       [12.2]        12.3125      12.3     -0.2*
 12       11.9       [11.9]        11.2463      11.2      0.7*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.9

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       13.1       [12.9]*       12.3581      12.4      0.7*
  2       13.1       [13.0]        12.9787      13.0      0.1 
  3       13.7       [13.6]        13.5633      13.6      0.1 
  4       14.4       [14.3]        14.4097      14.4      0.0 
  5       14.9       [14.8]        14.6752      14.7      0.2*
  6       16.9       [16.9]        16.6937      16.7      0.2 
  7       18.2       [18.2]        17.9495      17.9      0.3*
  8       18.2       [17.9]*       17.0393      17.0      1.2*
  9       16.7       [16.6]        16.6335      16.6      0.1 
 10       17.1       [17.0]        16.7174      16.7      0.4*
 11       14.8       [15.0]        14.6952      14.7      0.1 
 12       12.1       [12.1]        11.2970      11.3      0.8*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 4.2

Red Bluff/Municipal Airport - 1984 to 1985

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        9.0       [ 9.1]         8.3169       8.3      0.7*
  2        9.4       [ 9.5]         9.0693       9.1      0.3*
  3       13.7       [13.8]        13.6044      13.6      0.1 
  4       13.9       [14.0]        13.8758      13.9      0.0 
  5       21.7       [21.7]        21.6831      21.7      0.0 
  6       24.7       [24.6]        24.5679      24.6      0.1 
  7       29.6       [29.5]        29.3743      29.4      0.2*
  8       26.3       [26.3]        26.5405      26.5     -0.2 
  9       25.5       [25.4]        24.9653      25.0      0.5*
 10       15.6       [15.6]        15.0717      15.1      0.5*
 11        9.7       [ 9.8]         9.6204       9.6      0.1 
 12        7.1       [ 7.2]         6.4927       6.5      0.6*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.9

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        7.5       [ 7.6]         6.5338       6.5      1.0*
  2       11.9       [12.0]        11.2897      11.3      0.6*
  3       11.2       [11.3]        10.8856      10.9      0.3*
  4       18.1       [18.2]        17.9799      18.0      0.1 
  5       20.2       [20.2]        20.3345      20.3     -0.1 
  6       27.7       [27.7]        27.8295      27.8     -0.1 
  7       28.6       [28.6]        28.9382      28.9     -0.3*
  8       25.2       [25.2]        25.3151      25.3     -0.1 
  9       20.8       [20.9]        20.4035      20.4      0.4*
 10       17.7       [17.9]        17.2730      17.3      0.4*
 11        9.0       [ 9.1]         8.6343       8.6      0.4*
 12        6.7       [ 6.6]         5.7168       5.7      1.0*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.6

Fresno/Air Terminal - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        8.8       [ 8.9]         8.6193       8.6      0.2*
  2       10.4       [10.5]        10.3337      10.3      0.1 
  3       14.7       [14.8]        14.7088      14.7      0.0 
  4       16.0       [16.1]        16.1219      16.1     -0.1 
  5       23.8       [23.8]        24.0479      24.0     -0.2 
  6       25.3       [25.3]        25.4900      25.5     -0.2 
  7       30.6       [30.5]        30.7049      30.7     -0.1 
  8       28.6       [28.6]        28.5790      28.6      0.0 
  9       27.2       [27.3]        27.2500      27.3     -0.1 
 10       16.9       [17.0]        16.7466      16.7      0.2 
 11       12.0       [12.2]        11.9406      11.9      0.1 
 12        8.1       [ 8.2]         7.8547       7.9      0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.1

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        6.3       [ 6.4]         6.0088       6.0      0.3*
  2       10.7       [10.9]        10.6523      10.7      0.0 
  3       11.7       [11.9]        11.7167      11.7      0.0 
  4       19.6       [19.6]        19.5633      19.6      0.0 
  5       20.8       [20.8]        21.0245      21.0     -0.2 
  6       27.7       [27.7]        28.0247      28.0     -0.3*
  7       30.0       [30.1]        30.0881      30.1     -0.1 
  8       26.9       [27.0]        27.1229      27.1     -0.2*
  9       22.4       [22.4]        22.3526      22.4      0.0 
 10       18.3       [18.4]        18.0847      18.1      0.2 
 11       11.4       [11.5]        11.1304      11.1      0.3*
 12        6.6       [ 6.7]         6.1320       6.1      0.5*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.5

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       12.0       [12.1]        11.5114      11.5      0.5*
  2       13.2       [13.2]        12.7695      12.8      0.4*
  3       15.7       [15.8]        15.6340      15.6      0.1 
  4       17.1       [17.1]        17.0502      17.1      0.0 
  5       21.8       [21.8]        22.1214      22.1     -0.3*
  6       26.3       [26.3]        26.6489      26.6     -0.3*
  7       28.4       [27.7]*       28.0697      28.1      0.3*
  8       29.0       [29.1]        29.1876      29.2     -0.2 
  9       21.8       [21.8]        21.7261      21.7      0.1 
 10       19.4       [19.5]        19.0898      19.1      0.3*
 11       13.7       [13.9]*       13.4082      13.4      0.3*
 12        8.6       [ 8.6]         8.1982       8.2      0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.6

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        7.4       [ 7.5]         7.2775       7.3      0.1 
  2       11.6       [11.6]        11.1682      11.2      0.4*
  3       13.1       [13.1]        12.9406      12.9      0.2 
  4       19.3       [19.3]        19.3858      19.4     -0.1 
  5       22.1       [22.1]        22.2021      22.2     -0.1 
  6       25.8       [25.8]        26.0556      26.1     -0.3*
  7       25.0       [25.0]        25.2210      25.2     -0.2 
  8       26.8       [26.8]        26.8250      26.8      0.0 
  9       24.2       [24.2]        24.0849      24.1      0.1 
 10       21.2       [21.1]        20.6930      20.7      0.5*
 11       11.3       [11.4]        10.8549      10.9      0.4*
 12        6.8       [ 6.8]         6.5636       6.6      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.2

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        7.8       [ 7.8]         7.5568       7.6      0.2*
  2       11.2       [11.3]        10.5524      10.6      0.6*
  3       13.8       [13.8]        13.8344      13.8      0.0 
  4       16.4       [16.4]        16.3927      16.4      0.0 
  5       19.4       [19.3]        19.4803      19.5     -0.1 
  6       24.2       [24.2]        24.3349      24.3     -0.1 
  7       29.7       [29.7]        30.0202      30.0     -0.3*
  8       27.3       [27.3]        27.3544      27.4     -0.1 
  9       24.7       [24.6]        24.4691      24.5      0.2 
 10       20.4       [20.3]        19.9634      20.0      0.4*
 11       12.4       [12.4]        12.1343      12.1      0.3*
 12        6.9       [ 7.1]         6.3030       6.3      0.6*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.7

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        6.1       [ 6.1]         5.5578       5.6      0.5*
  2        9.3       [ 9.3]         8.8872       8.9      0.4*
  3       14.4       [14.4]        14.2899      14.3      0.1 
  4       19.6       [19.4]        19.3233      19.3      0.3*
  5       20.9       [20.7]        20.8841      20.9      0.0 
  6       25.0       [24.9]        25.1582      25.2     -0.2 
  7       28.1       [28.0]        28.4648      28.5     -0.4*
  8       26.3       [26.2]        26.4322      26.4     -0.1 
  9       23.5       [23.4]        23.2840      23.3      0.2 
 10       18.5       [18.5]        18.0541      18.1      0.4*
 11       12.4       [12.6]        11.8681      11.9      0.5*
 12        6.6       [ 6.7]         5.7728       5.8      0.8*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.5

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        7.5       [ 7.6]         6.9512       7.0      0.5*
  2        8.9       [ 8.9]         8.5855       8.6      0.3*
  3       14.1       [14.0]        13.8478      13.8      0.3*
  4       18.7       [18.7]        18.6698      18.7      0.0 
  5       20.1       [20.0]        20.2165      20.2     -0.1 
  6       24.9       [24.8]        25.0579      25.1     -0.2*
  7       28.9       [28.8]        29.1256      29.1     -0.2*
  8       27.0       [27.0]        27.1364      27.1     -0.1 
  9       24.3       [24.3]        24.2060      24.2      0.1 
 10       19.8       [19.9]        19.5736      19.6      0.2 
 11       11.6       [11.7]        11.2361      11.2      0.4*
 12        5.3       [ 5.3]         4.4945       4.5      0.8*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        8.3       [ 8.4]         7.8226       7.8      0.5*
  2       13.2       [13.2]        12.6438      12.6      0.6*
  3       10.8       [10.9]        10.6944      10.7      0.1 
  4       15.3       [15.2]        15.3256      15.3      0.0 
  5       18.9       [18.8]        19.0845      19.1     -0.2*
  6       23.7       [23.6]        24.0062      24.0     -0.3*
  7       28.8       [28.6]        29.0188      29.0     -0.2 
  8       25.9       [25.8]        25.8849      25.9      0.0 
  9       26.6       [26.6]        26.5833      26.6      0.0 
 10       21.4       [21.5]        21.1634      21.2      0.2 
 11       13.2       [13.2]        12.7153      12.7      0.5*
 12        8.3       [ 8.4]         7.7942       7.8      0.5*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.7

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        5.9       [ 5.9]         5.5264       5.5      0.4*
  2       13.1       [13.2]        12.7778      12.8      0.3*
  3       14.9       [14.9]        14.6416      14.6      0.3*
  4       19.3       [19.3]        19.3465      19.3      0.0 
  5       24.4       [24.4]        24.6416      24.6     -0.2*
  6       25.0       [24.9]        25.0988      25.1     -0.1 
  7       27.4       [27.3]        27.5358      27.5     -0.1 
  8       28.4       [28.4]        28.6820      28.7     -0.3*
  9       25.0       [24.9]        24.8164      24.8      0.2 
 10       20.3       [20.3]        19.9238      19.9      0.4*
 11       12.4       [12.4]        11.8634      11.9      0.5*
 12        7.4       [ 7.4]         7.1184       7.1      0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.7

Scottsbluff/Country Airport - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -2.6       [-2.6]        -3.1683      -3.2      0.6*
  2        2.1       [ 1.9]         0.8964       0.9      1.2*
  3        3.1       [ 2.9]         2.3320       2.3      0.8*
  4        5.8       [ 5.6]         5.2562       5.3      0.5*
  5       15.1       [14.8]*       14.5684      14.6      0.5*
  6       19.5       [19.3]        19.0270      19.0      0.5*
  7       23.9       [23.7]        22.9473      22.9      1.0*
  8       24.8       [24.6]*       24.1211      24.1      0.7*
  9       15.7       [15.6]        15.2353      15.2      0.5*
 10        8.1       [ 7.9]         7.2827       7.3      0.8*
 11        3.3       [ 3.2]         2.1466       2.1      1.2*
 12       -3.8       [-3.8]        -4.2122      -4.2      0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 8.7

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -6.2       [-6.1]        -6.2724      -6.3      0.1 
  2       -3.4       [-3.6]        -3.8864      -3.9      0.5*
  3        4.3       [ 4.2]         3.8538       3.9      0.4*
  4       10.6       [10.4]*       10.4576      10.5      0.1 
  5       16.6       [16.3]*       16.5069      16.5      0.1 
  6       19.2       [19.1]        19.1836      19.2      0.0 
  7       24.2       [23.9]*       23.8665      23.9      0.3*
  8       22.1       [21.8]*       21.2746      21.3      0.8*
  9       14.3       [14.1]        13.5417      13.5      0.8*
 10        8.8       [ 8.7]         8.0048       8.0      0.8*
 11       -5.4       [-5.4]        -5.2014      -5.2     -0.2*
 12       -6.4       [-6.4]        -6.1477      -6.1     -0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.4

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.7       [ 0.6]         0.1426       0.1      0.6*
  2       -2.2       [-2.3]        -2.5852      -2.6      0.4*
  3        6.9       [ 6.9]         6.6973       6.7      0.2*
  4        8.6       [ 8.4]         8.2037       8.2      0.4*
  5       13.1       [13.0]        13.2213      13.2     -0.1 
  6       20.9       [20.9]        20.8349      20.8      0.1 
  7       22.7       [22.5]        22.2230      22.2      0.5*
  8       21.8       [21.6]*       20.8699      20.9      0.9*
  9       15.5       [15.4]        14.7261      14.7      0.8*
 10        9.3       [ 9.2]         8.4117       8.4      0.9*
 11        1.8       [ 1.8]         1.3110       1.3      0.5*
 12       -1.7       [-1.7]        -2.6381      -2.6      0.9*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 6.1

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.6       [-1.5]        -1.9892      -2.0      0.4*
  2        1.1       [ 1.1]         0.3828       0.4      0.7*
  3        0.8       [ 0.6]         0.3106       0.3      0.5*
  4       10.7       [10.6]        10.5972      10.6      0.1 
  5       15.9       [15.8]        15.6459      15.6      0.3*
  6       20.3       [20.3]        20.2485      20.2      0.1 
  7       23.9       [23.7]        23.3266      23.3      0.6*
  8       20.6       [20.6]        20.0575      20.1      0.5*
  9       16.0       [15.8]*       15.3997      15.4      0.6*
 10        8.8       [ 8.7]         8.0884       8.1      0.7*
 11        3.7       [ 3.7]         2.6242       2.6      1.1*
 12       -3.7       [-3.7]        -3.8807      -3.9      0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 5.8

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -7.6       [-7.5]        -7.3066      -7.3     -0.3*
  2       -0.8       [-0.9]        -1.3466      -1.3      0.5*
  3        2.3       [ 2.2]         2.2207       2.2      0.1 
  4        8.3       [ 8.4]         8.6142       8.6     -0.3*
  5       14.7       [14.6]        14.6983      14.7      0.0 
  6       22.8       [22.6]*       22.7508      22.8      0.0 
  7       23.7       [23.6]        23.1915      23.2      0.5*
  8       22.7       [22.4]*       22.1759      22.2      0.5*
  9       15.9       [15.8]        15.3048      15.3      0.6*
 10       10.3       [10.2]         9.1898       9.2      1.1*
 11        3.1       [ 2.9]         2.6127       2.6      0.5*
 12       -2.1       [-1.9]        -2.2110      -2.2      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.3

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -0.8       [-0.7]        -0.6444      -0.6     -0.2*
  2       -7.5       [-7.6]        -7.8480      -7.8      0.3*
  3        2.3       [ 2.2]         1.7921       1.8      0.5*
  4        9.1       [ 9.1]         8.9923       9.0      0.1 
  5       14.8       [14.6]        14.7805      14.8      0.0 
  6       19.2       [19.1]        18.9853      19.0      0.2 
  7       25.2       [24.8]*       24.7872      24.8      0.4*
  8       22.7       [22.4]*       21.8302      21.8      0.9*
  9       16.3       [16.2]        15.8295      15.8      0.5*
 10        9.4       [ 9.4]         8.8620       8.9      0.5*
 11        4.2       [ 4.1]         3.8017       3.8      0.4*
 12       -6.3       [-6.4]        -6.2022      -6.2     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.5

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.3       [ 0.3]         0.2905       0.3      0.0 
  2       -1.1       [-1.1]        -1.7047      -1.7      0.6*
  3        3.1       [ 2.9]         2.3850       2.4      0.7*
  4        8.3       [ 8.1]         7.4352       7.4      0.9*
  5       12.5       [12.4]        12.4649      12.5      0.0 
  6       21.4       [21.4]        21.4406      21.4      0.0 
  7       22.2       [22.1]        21.7585      21.8      0.4*
  8       21.9       [21.7]*       20.9573      21.0      0.9*
  9       18.9       [18.8]        18.2160      18.2      0.7*
 10        9.5       [ 9.4]         8.8456       8.8      0.7*
 11        4.1       [ 4.1]         3.6049       3.6      0.5*
 12       -6.3       [-6.2]        -6.4307      -6.4      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 5.5

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -5.1       [-5.0]        -5.2292      -5.2      0.1 
  2        3.1       [ 3.1]         2.5174       2.5      0.6*
  3        3.9       [ 3.9]         3.9300       3.9      0.0 
  4        7.8       [ 7.7]         7.9591       8.0     -0.2*
  5       15.2       [15.1]        14.9291      14.9      0.3*
  6       20.3       [20.2]        20.0556      20.1      0.2 
  7       23.4       [23.2]*       23.1728      23.2      0.2 
  8       23.4       [23.2]        22.6381      22.6      0.8*
  9       17.2       [17.1]        16.3326      16.3      0.9*
 10        8.8       [ 8.7]         8.1967       8.2      0.6*
 11        0.4       [ 0.6]         0.2261       0.2      0.2 
 12        0.1       [ 0.0]        -0.8819      -0.9      1.0*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 4.7

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -0.3       [-0.3]        -0.9521      -1.0      0.7*
  2        3.3       [ 3.3]         2.4808       2.5      0.8*
  3        5.2       [ 5.2]         4.9769       5.0      0.2*
  4       10.3       [10.2]        10.3688      10.4     -0.1 
  5       15.5       [15.4]        15.5145      15.5      0.0 
  6       18.9       [18.8]        18.3225      18.3      0.6*
  7       20.4       [20.2]        19.6782      19.7      0.7*
  8       19.7       [19.4]*       18.9725      19.0      0.7*
  9       17.1       [16.9]*       16.6373      16.6      0.5*
 10       10.0       [ 9.8]         9.0255       9.0      1.0*
 11       -0.6       [-0.5]        -0.7461      -0.7      0.1 
 12       -7.3       [-7.3]        -6.9683      -7.0     -0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 4.9

ISLIP/Long Island - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -2.6       [-2.6]        -2.2095      -2.2     -0.4*
  2        3.4       [ 3.4]         3.3637       3.4      0.0 
  3        1.5       [ 1.4]         1.3433       1.3      0.2 
  4        8.9       [ 8.9]         8.6181       8.6      0.3*
  5       14.0       [14.1]        14.1099      14.1     -0.1 
  6       21.2       [21.2]        20.8881      20.9      0.3*
  7       22.1       [22.2]        22.0378      22.0      0.1 
  8       23.3       [23.3]        22.9533      23.0      0.3*
  9       17.0       [17.0]        17.1721      17.2     -0.2 
 10       14.2       [14.2]        14.2734      14.3     -0.1 
 11        7.1       [ 7.1]         7.3125       7.3     -0.2*
 12        5.2       [ 5.1]         5.0508       5.1      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.3

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -3.2       [-3.1]        -2.9712      -3.0     -0.2*
  2        0.5       [ 0.5]         0.4911       0.5      0.0 
  3        5.5       [ 5.6]         5.3465       5.3      0.2*
  4       10.5       [10.5]        10.2207      10.2      0.3*
  5       15.8       [15.9]        15.6332      15.6      0.2*
  6       18.6       [18.6]        18.4869      18.5      0.1 
  7       23.0       [23.1]        22.7815      22.8      0.2 
  8       22.1       [22.2]        22.1804      22.2     -0.1 
  9       19.4       [19.5]        19.3264      19.3      0.1 
 10       13.3       [13.4]        13.6977      13.7     -0.4*
 11        9.1       [ 9.2]         9.2546       9.3     -0.2*
 12        0.1       [ 0.2]         0.6086       0.6     -0.5*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.3

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -0.2       [ 0.0]         0.1292       0.1     -0.3*
  2       -1.1       [-1.1]        -1.0450      -1.0     -0.1 
  3        4.7       [ 4.7]         4.7386       4.7      0.0 
  4        9.9       [ 9.9]         9.6096       9.6      0.3*
  5       16.4       [16.4]        15.9804      16.0      0.4*
  6       19.8       [19.8]        19.8264      19.8      0.0 
  7       23.0       [23.0]        22.9301      22.9      0.1 
  8       21.3       [21.3]        21.3336      21.3      0.0 
  9       17.6       [17.7]        17.8665      17.9     -0.3*
 10       12.1       [12.4]*       12.7994      12.8     -0.7*
 11        5.9       [ 5.9]         6.4653       6.5     -0.6*
 12        2.4       [ 2.6]*        2.9876       3.0     -0.6*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.8

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -0.9       [-0.8]        -0.5630      -0.6     -0.3*
  2       -1.0       [-0.9]        -0.8474      -0.8     -0.2 
  3        5.0       [ 5.2]         5.0231       5.0      0.0 
  4       10.0       [ 9.9]         9.7585       9.8      0.2 
  5       14.5       [14.4]        14.6214      14.6     -0.1 
  6       20.6       [20.7]        20.6404      20.6      0.0 
  7       23.8       [23.9]        23.5118      23.5      0.3*
  8       21.6       [21.7]        21.6278      21.6      0.0 
  9       18.4       [18.4]        18.5826      18.6     -0.2*
 10       10.6       [10.7]        11.1850      11.2     -0.6*
 11        7.6       [ 7.7]         7.7701       7.8     -0.2*
 12        2.7       [ 2.7]         2.9316       2.9     -0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.3

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -3.0       [-2.9]        -2.5284      -2.5     -0.5*
  2        0.2       [ 0.3]         0.5540       0.6     -0.4*
  3        4.4       [ 4.3]         4.3772       4.4      0.0 
  4        8.8       [ 8.8]         8.6721       8.7      0.1 
  5       14.9       [14.8]        14.6752      14.7      0.2*
  6       19.9       [19.9]        19.9313      19.9      0.0 
  7       23.9       [23.9]        23.5133      23.5      0.4*
  8       23.9       [23.9]        23.6970      23.7      0.2 
  9       17.9       [18.0]        18.0509      18.1     -0.2*
 10        9.8       [ 9.9]        10.2210      10.2     -0.4*
 11        7.4       [ 7.5]         7.9483       7.9     -0.5*
 12        0.8       [ 0.8]         1.2493       1.2     -0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.5

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        1.5       [ 1.4]         1.7779       1.8     -0.3*
  2       -0.4       [-0.3]        -0.0331       0.0     -0.4*
  3        3.4       [ 3.5]         3.4379       3.4      0.0 
  4        8.6       [ 8.6]         8.6474       8.6      0.0 
  5       14.8       [14.8]        14.8283      14.8      0.0 
  6       21.1       [21.1]        20.9306      20.9      0.2*
  7       22.6       [22.6]        22.5612      22.6      0.0 
  8       22.9       [22.9]        22.6113      22.6      0.3*
  9       18.3       [18.4]        18.5733      18.6     -0.3*
 10       12.5       [12.5]        12.7815      12.8     -0.3*
 11        5.9       [ 5.9]         6.5841       6.6     -0.7*
 12       -4.0       [-4.0]        -4.0405      -4.0      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.5

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        3.3       [ 3.3]         3.3259       3.3      0.0 
  2        2.2       [ 2.3]         2.6612       2.7     -0.5*
  3        4.8       [ 4.9]         4.9821       5.0     -0.2*
  4        9.3       [ 9.3]         9.3295       9.3      0.0 
  5       13.9       [13.9]        13.8740      13.9      0.0 
  6       20.0       [20.1]        20.0586      20.1     -0.1 
  7       23.4       [23.4]        23.1228      23.1      0.3*
  8       23.4       [23.4]        23.1399      23.1      0.3*
  9       18.9       [19.0]        19.4244      19.4     -0.5*
 10       16.1       [16.2]        16.5091      16.5     -0.4*
 11        8.5       [ 8.6]         8.8256       8.8     -0.3*
 12        4.4       [ 4.5]         4.7200       4.7     -0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.7

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.1       [ 0.1]         0.3890       0.4     -0.3*
  2        2.6       [ 2.6]         2.8514       2.9     -0.3*
  3        6.0       [ 5.9]         5.8087       5.8      0.2*
  4       11.1       [11.1]        10.8287      10.8      0.3*
  5       17.9       [17.9]        17.9779      18.0     -0.1 
  6       21.4       [21.4]        21.3457      21.3      0.1 
  7       23.8       [23.7]        23.6850      23.7      0.1 
  8       23.6       [23.6]        23.4386      23.4      0.2*
  9       18.0       [18.0]        18.2168      18.2     -0.2 
 10       13.4       [13.3]        13.4468      13.4      0.0 
 11        7.7       [ 7.7]         7.7940       7.8     -0.1 
 12        3.0       [ 3.1]         3.4267       3.4     -0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.5

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.3       [ 0.2]         0.5518       0.6     -0.3*
  2        1.2       [ 1.3]         1.2652       1.3     -0.1 
  3        2.8       [ 2.8]         2.9264       2.9     -0.1 
  4        7.8       [ 7.8]         7.5671       7.6      0.2*
  5       14.0       [14.0]        14.0031      14.0      0.0 
  6       19.1       [19.1]        19.1011      19.1      0.0 
  7       21.9       [21.9]        21.9377      21.9      0.0 
  8       21.3       [21.3]        21.2761      21.3      0.0 
  9       18.2       [18.2]        18.3943      18.4     -0.2 
 10       11.1       [11.1]        11.3336      11.3     -0.2*
 11        7.0       [ 7.0]         7.2168       7.2     -0.2*
 12        2.3       [ 2.3]         2.7920       2.8     -0.5*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.4

Memphis/Intl Airport - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        2.3       [ 2.2]         2.0654       2.1      0.2 
  2        8.8       [ 8.7]         8.7173       8.7      0.1 
  3       10.8       [10.6]        10.4674      10.5      0.3*
  4       16.3       [16.2]        16.1188      16.1      0.2 
  5       20.9       [20.8]        20.9543      21.0     -0.1 
  6       27.3       [27.1]        27.0633      27.1      0.2 
  7       27.3       [27.2]        27.3073      27.3      0.0 
  8       26.6       [26.5]        26.2336      26.2      0.4*
  9       22.3       [22.2]        22.1219      22.1      0.2 
 10       20.4       [20.3]        19.8708      19.9      0.5*
 11       10.6       [10.6]        10.5170      10.5      0.1 
 12       12.2       [12.1]        12.1789      12.2      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.1

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.3       [ 0.3]         0.0015       0.0      0.3*
  2        4.9       [ 4.8]         4.4684       4.5      0.4*
  3       14.3       [14.4]        14.2988      14.3      0.0 
  4       18.4       [18.3]        18.4198      18.4      0.0 
  5       22.2       [22.1]        22.0624      22.1      0.1 
  6       26.2       [26.1]        26.0116      26.0      0.2 
  7       28.0       [27.9]        27.7636      27.8      0.2 
  8       26.9       [26.7]        26.5412      26.5      0.4*
  9       23.3       [23.2]        22.8958      22.9      0.4*
 10       19.7       [19.5]*       19.2212      19.2      0.5*
 11       14.3       [14.3]        14.3071      14.3      0.0 
 12        2.8       [ 2.9]         3.0085       3.0     -0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.3

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        5.7       [ 5.6]         5.5966       5.6      0.1 
  2        8.9       [ 8.9]         8.7839       8.8      0.1 
  3       13.1       [13.0]        13.1676      13.2     -0.1 
  4       18.1       [18.0]        18.3951      18.4     -0.3*
  5       22.6       [22.4]*       22.3522      22.4      0.2*
  6       27.3       [27.2]        26.9144      26.9      0.4*
  7       30.4       [30.2]        30.2875      30.3      0.1 
  8       26.4       [26.3]        26.1134      26.1      0.3*
  9       26.2       [26.1]        25.7832      25.8      0.4*
 10       17.9       [17.9]        17.5724      17.6      0.3*
 11       10.8       [10.6]        10.5347      10.5      0.3*
 12        6.0       [ 5.9]         5.8132       5.8      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        4.3       [ 4.3]         4.1174       4.1      0.2*
  2        8.6       [ 8.3]*        8.2606       8.3      0.3*
  3       12.7       [12.7]        12.7688      12.8     -0.1 
  4       16.9       [16.8]        16.8410      16.8      0.1 
  5       24.9       [24.6]*       24.3272      24.3      0.6*
  6       26.8       [26.7]        26.5880      26.6      0.2 
  7       28.2       [27.9]*       27.8226      27.8      0.4*
  8       28.8       [28.6]*       28.3393      28.3      0.5*
  9       24.2       [24.0]        23.8140      23.8      0.4*
 10       15.2       [15.2]        15.2494      15.2      0.0 
 11       12.6       [12.6]        12.3657      12.4      0.2 
 12        8.3       [ 8.3]         8.0600       8.1      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        2.8       [ 2.8]         2.6882       2.7      0.1 
  2        5.7       [ 5.8]         5.4390       5.4      0.3*
  3       11.4       [11.4]        11.6853      11.7     -0.3*
  4       17.3       [17.2]        17.3781      17.4     -0.1 
  5       22.3       [22.1]        22.4597      22.5     -0.2 
  6       27.0       [26.9]        27.2006      27.2     -0.2 
  7       27.6       [27.4]        27.4470      27.4      0.2*
  8       28.8       [28.8]        28.6455      28.6      0.2 
  9       24.7       [24.6]        24.3333      24.3      0.4*
 10       15.2       [15.1]        14.8731      14.9      0.3*
 11       12.7       [12.6]        12.4321      12.4      0.3*
 12        7.2       [ 7.2]         7.3059       7.3     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.9

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        8.6       [ 8.6]         8.6649       8.7     -0.1 
  2        4.6       [ 4.5]         4.0509       4.1      0.5*
  3       12.2       [12.1]        11.9691      12.0      0.2 
  4       17.1       [17.1]        17.1867      17.2     -0.1 
  5       20.9       [20.9]        20.9789      21.0     -0.1 
  6       25.5       [25.3]*       25.0494      25.0      0.5*
  7       27.2       [27.0]*       26.7204      26.7      0.5*
  8       27.5       [27.3]*       27.0094      27.0      0.5*
  9       22.6       [22.3]*       22.1505      22.2      0.4*
 10       18.0       [17.8]        17.6411      17.6      0.4*
 11       12.4       [12.4]        12.3796      12.4      0.0 
 12        1.0       [ 0.9]         1.0454       1.0      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.7

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        9.3       [ 9.2]         8.8874       8.9      0.4*
  2       11.3       [11.2]        11.1334      11.1      0.2*
  3       13.1       [13.1]        12.8816      12.9      0.2 
  4       16.5       [16.4]        16.4676      16.5      0.0 
  5       20.3       [20.2]        20.2367      20.2      0.1 
  6       27.2       [27.1]        27.1073      27.1      0.1 
  7       28.2       [27.9]*       28.0675      28.1      0.1 
  8       27.9       [27.6]*       27.5493      27.5      0.4*
  9       25.6       [25.4]*       24.9630      25.0      0.6*
 10       16.3       [16.3]        16.0842      16.1      0.2 
 11       14.1       [14.0]        13.8125      13.8      0.3*
 12        7.7       [ 7.8]         7.6254       7.6      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.7

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        5.3       [ 5.1]*        4.8701       4.9      0.4*
  2        9.0       [ 8.9]         9.0608       9.1     -0.1 
  3       13.1       [13.1]        13.2251      13.2     -0.1 
  4       18.4       [18.3]        18.2492      18.2      0.2 
  5       23.7       [23.6]        23.3326      23.3      0.4*
  6       26.9       [26.8]        26.4715      26.5      0.4*
  7       28.7       [28.4]*       28.3169      28.3      0.4*
  8       27.3       [27.1]*       26.9153      26.9      0.4*
  9       24.2       [23.8]*       23.4583      23.5      0.7*
 10       18.7       [18.6]        18.4872      18.5      0.2 
 11        9.7       [ 9.5]         9.4267       9.4      0.3*
 12        8.4       [ 8.2]         8.3318       8.3      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.3

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        5.8       [ 5.7]         5.4951       5.5      0.3*
  2       10.1       [10.0]         9.8579       9.9      0.2 
  3       12.2       [12.1]        12.0400      12.0      0.2 
  4       17.4       [17.2]*       17.2917      17.3      0.1 
  5       21.4       [21.3]        21.1723      21.2      0.2 
  6       25.1       [24.9]        24.7029      24.7      0.4*
  7       28.2       [28.0]        27.7539      27.8      0.4*
  8       25.1       [24.8]*       24.6423      24.6      0.5*
  9       23.0       [22.8]        22.6929      22.7      0.3*
 10       17.8       [17.6]        17.3611      17.4      0.4*
 11       10.5       [10.4]        10.3927      10.4      0.1 
 12        6.7       [ 6.6]         6.7189       6.7      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.1

Yakima/Air Terminal - 1984 to 1991

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -0.3       [-0.5]        -0.6967      -0.7      0.4*
  2        3.4       [ 3.3]         2.9869       3.0      0.4*
  3        7.6       [ 7.4]*        7.2581       7.3      0.3*
  4        8.5       [ 8.4]         8.4252       8.4      0.1 
  5       11.5       [11.4]        12.2200      12.2     -0.7*
  6       16.3       [16.2]        16.9360      16.9     -0.6*
  7       21.6       [21.4]*       22.1782      22.2     -0.6*
  8       20.6       [20.6]        20.9035      20.9     -0.3*
  9       15.1       [14.9]        15.1296      15.1      0.0 
 10        8.6       [ 8.4]*        8.1056       8.1      0.5*
 11        2.4       [ 2.6]*        2.5571       2.6     -0.2*
 12       -6.6       [-6.4]*       -6.4120      -6.4     -0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.9

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -3.0       [-3.1]        -2.9197      -2.9     -0.1 
  2       -1.6       [-1.6]        -1.7799      -1.8      0.2 
  3        5.6       [ 5.6]         5.4809       5.5      0.1 
  4       10.6       [10.5]        10.8958      10.9     -0.3*
  5       15.0       [14.9]        15.6175      15.6     -0.6*
  6       18.3       [18.2]        18.8380      18.8     -0.5*
  7       23.9       [23.8]        24.6117      24.6     -0.7*
  8       19.1       [18.9]*       19.4437      19.4     -0.3*
  9       13.1       [12.9]        13.1335      13.1      0.0 
 10        8.3       [ 8.2]         7.9159       7.9      0.4*
 11       -4.9       [-4.7]        -4.4398      -4.4     -0.5*
 12       -7.1       [-7.1]        -6.9766      -7.0     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -2.4

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.0       [-1.1]        -1.4434      -1.4      0.4*
  2        1.9       [ 1.8]         1.5112       1.5      0.4*
  3        7.7       [ 7.7]         7.7016       7.7      0.0 
  4        8.6       [ 8.5]         9.1721       9.2     -0.6*
  5       14.3       [14.2]        15.0650      15.1     -0.8*
  6       19.8       [19.9]        20.6752      20.7     -0.9*
  7       18.8       [18.8]        19.5871      19.6     -0.8*
  8       22.7       [22.7]        23.3057      23.3     -0.6*
  9       14.0       [13.9]        13.9313      13.9      0.1 
 10       10.7       [10.7]         9.9365       9.9      0.8*
 11        3.7       [ 3.7]         3.9290       3.9     -0.2 
 12       -1.8       [-1.9]        -1.7973      -1.8      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -2.2

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.9       [-2.2]*       -2.2603      -2.3      0.4*
  2        3.2       [ 3.1]         2.5355       2.5      0.7*
  3        6.8       [ 6.7]         6.7988       6.8      0.0 
  4       11.8       [11.7]        12.1173      12.1     -0.3*
  5       15.4       [15.5]        15.7378      15.7     -0.3*
  6       19.1       [18.9]        19.9599      20.0     -0.9*
  7       20.1       [20.0]        20.6078      20.6     -0.5*
  8       20.4       [20.4]        20.8714      20.9     -0.5*
  9       17.3       [17.3]        16.8194      16.8      0.5*
 10       10.3       [10.3]         9.1263       9.1      1.2*
 11        4.7       [ 4.7]         3.9992       4.0      0.7*
 12       -1.5       [-1.5]        -1.6443      -1.6      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.1

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.7       [-1.8]        -1.8817      -1.9      0.2 
  2        3.6       [ 3.5]         2.7882       2.8      0.8*
  3        5.8       [ 5.8]         6.3493       6.3     -0.5*
  4       10.7       [10.7]        11.0046      11.0     -0.3*
  5       12.9       [13.0]        13.7321      13.7     -0.8*
  6       16.8       [16.8]        17.5193      17.5     -0.7*
  7       20.8       [20.8]        21.9773      22.0     -1.2*
  8       19.9       [20.0]        20.4070      20.4     -0.5*
  9       15.4       [15.5]        15.2909      15.3      0.1 
 10       12.9       [12.9]        12.1640      12.2      0.7*
 11        4.2       [ 4.2]         4.0702       4.1      0.1 
 12       -2.0       [-2.2]*       -2.0116      -2.0      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -2.1

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        2.6       [ 2.6]         2.4470       2.4      0.2*
  2        1.9       [ 1.8]         1.6634       1.7      0.2 
  3        6.9       [ 6.8]         6.7682       6.8      0.1 
  4       12.0       [11.9]        12.3981      12.4     -0.4*
  5       12.8       [12.8]        13.5573      13.6     -0.8*
  6       17.7       [17.7]        18.3750      18.4     -0.7*
  7       23.1       [23.0]        23.8964      23.9     -0.8*
  8       21.3       [21.3]        21.3381      21.3      0.0 
  9       18.7       [18.6]        18.2400      18.2      0.5*
 10        8.3       [ 8.3]         8.5327       8.5     -0.2 
 11        5.4       [ 5.4]         5.2832       5.3      0.1 
 12       -5.0       [-5.1]        -5.1508      -5.2      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.6

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -2.3       [-2.4]        -2.9801      -3.0      0.7*
  2        5.4       [ 5.3]         4.6668       4.7      0.7*
  3        4.9       [ 4.9]         4.9380       4.9      0.0 
  4        9.7       [ 9.6]        10.1906      10.2     -0.5*
  5       12.9       [13.0]        13.8254      13.8     -0.9*
  6       15.7       [15.7]        16.1559      16.2     -0.5*
  7       21.6       [21.5]        22.4985      22.5     -0.9*
  8       21.9       [21.9]        22.3723      22.4     -0.5*
  9       17.8       [17.6]        17.3627      17.4      0.4*
 10        9.4       [ 9.4]         8.8217       8.8      0.6*
 11        3.6       [ 3.6]         3.3040       3.3      0.3*
 12        1.7       [ 1.6]         1.0880       1.1      0.6*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0

Lander/Hunt Field - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -8.7       [-8.6]        -8.7067      -8.7      0.0 
  2       -6.3       [-6.3]        -6.1877      -6.2     -0.1 
  3       -0.4       [-0.3]        -0.4353      -0.4      0.0 
  4        4.7       [ 4.7]         4.4529       4.5      0.2*
  5       13.4       [13.4]        13.5223      13.5     -0.1 
  6       17.4       [17.4]        17.4591      17.5     -0.1 
  7       23.1       [23.1]        23.1489      23.1      0.0 
  8       22.6       [22.6]        22.2902      22.3      0.3*
  9       12.9       [13.1]*       12.9043      12.9      0.0 
 10        5.4       [ 5.4]         5.3838       5.4      0.0 
 11        0.2       [ 0.4]         0.1042       0.1      0.1 
 12       -6.3       [-5.9]*       -6.0872      -6.1     -0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.1

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -8.7       [-8.4]*       -8.6402      -8.6     -0.1 
  2       -4.1       [-4.1]        -4.3915      -4.4      0.3*
  3        2.4       [ 2.3]         2.1841       2.2      0.2 
  4        9.2       [ 9.2]         9.4275       9.4     -0.2*
  5       15.2       [15.1]        15.3054      15.3     -0.1 
  6       18.7       [18.9]        19.2600      19.3     -0.6*
  7       23.3       [23.3]        22.9316      22.9      0.4*
  8       19.6       [19.8]        19.7215      19.7     -0.1 
  9       11.9       [11.9]        11.7068      11.7      0.2*
 10        7.6       [ 7.6]         7.2289       7.2      0.4*
 11       -7.8       [-7.7]        -7.6181      -7.6     -0.2*
 12       -8.7       [-8.8]        -9.0900      -9.1      0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.6

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -5.5       [-5.6]        -5.6243      -5.6      0.1 
  2       -4.0       [-4.0]        -3.7120      -3.7     -0.3*
  3        6.8       [ 6.8]         6.6988       6.7      0.1 
  4        7.3       [ 7.1]         6.8117       6.8      0.5*
  5       11.6       [11.4]        11.7660      11.8     -0.2*
  6       20.3       [20.3]        20.3295      20.3      0.0 
  7       20.5       [20.4]        20.2890      20.3      0.2 
  8       21.1       [20.9]        20.7669      20.8      0.3*
  9       13.0       [12.9]        12.3704      12.4      0.6*
 10        7.9       [ 7.8]         7.4067       7.4      0.5*
 11       -0.3       [-0.4]        -0.7662      -0.8      0.5*
 12       -7.2       [-7.4]*       -7.6277      -7.6      0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.7

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -8.3       [-8.3]        -8.4886      -8.5      0.2 
  2       -2.0       [-2.1]        -2.2073      -2.2      0.2*
  3        0.3       [ 0.1]*       -0.2360      -0.2      0.5*
  4       10.6       [10.6]        10.4390      10.4      0.2 
  5       14.3       [14.2]        14.1375      14.1      0.2*
  6       19.0       [19.0]        18.9105      18.9      0.1 
  7       21.4       [21.2]        21.0028      21.0      0.4*
  8       19.3       [19.3]        19.1764      19.2      0.1 
  9       16.1       [16.2]        15.9622      16.0      0.1 
 10        9.3       [ 9.2]         8.6925       8.7      0.6*
 11       -0.9       [-1.0]        -1.4529      -1.5      0.6*
 12       -6.3       [-6.2]        -6.3157      -6.3      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.2

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -7.1       [-7.2]        -7.4530      -7.5      0.4*
  2       -1.2       [-1.2]        -1.7912      -1.8      0.6*
  3        0.8       [ 0.7]         0.5690       0.6      0.2*
  4        9.4       [ 9.4]         9.2654       9.3      0.1 
  5       13.2       [13.2]        13.3393      13.3     -0.1 
  6       22.7       [22.7]        22.8372      22.8     -0.1 
  7       24.2       [24.2]        24.5736      24.6     -0.4*
  8       21.7       [21.7]        21.9093      21.9     -0.2 
  9       14.9       [14.9]        14.9082      14.9      0.0 
 10       12.1       [12.1]        11.5703      11.6      0.5*
 11        1.6       [ 1.7]         1.3009       1.3      0.3*
 12       -6.2       [-6.1]        -6.4718      -6.5      0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.6

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.4       [-1.4]        -1.4792      -1.5      0.1 
  2       -1.7       [-1.6]        -1.7469      -1.7      0.0 
  3        2.9       [ 2.8]         2.4978       2.5      0.4*
  4        8.1       [ 7.9]*        7.8179       7.8      0.3*
  5       11.5       [11.5]        11.4815      11.5      0.0 
  6       18.5       [18.6]        18.9244      18.9     -0.4*
  7       21.6       [21.6]        21.2485      21.2      0.4*
  8       21.7       [21.6]        21.4994      21.5      0.2 
  9       18.4       [18.3]        18.1150      18.1      0.3*
 10        8.6       [ 8.5]         8.2139       8.2      0.4*
 11        0.9       [ 0.9]         0.7469       0.7      0.2*
 12       -10.3       [-10.3]        -10.4167      -10.4      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -7.2       [-7.2]        -7.6247      -7.6      0.4*
  2        1.2       [ 1.1]         0.7738       0.8      0.4*
  3        3.2       [ 3.1]         3.1534       3.2      0.0 
  4        5.4       [ 5.2]         5.2531       5.3      0.1 
  5       11.3       [11.1]        11.0633      11.1      0.2*
  6       18.1       [18.0]        18.0340      18.0      0.1 
  7       22.5       [22.3]*       22.3880      22.4      0.1 
  8       22.1       [22.1]        21.8407      21.8      0.3*
  9       15.7       [15.6]        15.2230      15.2      0.5*
 10        8.1       [ 8.1]         8.0511       8.1      0.0 
 11       -2.8       [-2.8]        -3.0787      -3.1      0.3*
 12       -6.1       [-6.3]        -6.5412      -6.5      0.4*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.8

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -6.2       [-6.4]        -6.5808      -6.6      0.4*
  2        0.7       [ 0.7]         0.3807       0.4      0.3*
  3        5.5       [ 5.4]         5.1710       5.2      0.3*
  4       10.5       [10.6]        10.5772      10.6     -0.1 
  5       14.2       [14.1]        14.1577      14.2      0.0 
  6       17.5       [17.4]        17.2145      17.2      0.3*
  7       18.8       [18.7]        18.5969      18.6      0.2 
  8       20.2       [20.1]        19.9403      19.9      0.3*
  9       15.8       [15.8]        15.8866      15.9     -0.1 
 10       10.2       [10.2]         9.8514       9.9      0.3*
 11       -1.6       [-1.7]        -2.0471      -2.0      0.4*
 12       -8.8       [-9.0]        -9.0338      -9.0      0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2.5

Lexington/Bluegrass Field - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -2.3       [-2.3]        -2.3940      -2.4      0.1 
  2        5.2       [ 5.2]         5.0423       5.0      0.2*
  3        4.4       [ 4.3]         4.1726       4.2      0.2*
  4       11.8       [11.7]        11.7145      11.7      0.1 
  5       16.1       [16.1]        16.3725      16.4     -0.3*
  6       24.6       [24.4]        24.1937      24.2      0.4*
  7       22.8       [22.8]        22.8562      22.9     -0.1 
  8       23.9       [23.8]        23.4700      23.5      0.4*
  9       19.3       [19.2]        19.0015      19.0      0.3*
 10       17.6       [17.5]        17.2566      17.3      0.3*
 11        5.6       [ 5.7]         5.4907       5.5      0.1 
 12        7.6       [ 7.6]         7.3044       7.3      0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 2

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -4.5       [-4.4]        -4.1831      -4.2     -0.3*
  2       -0.7       [-0.8]        -0.5729      -0.6     -0.1 
  3        9.3       [ 9.3]         9.0823       9.1      0.2*
  4       14.8       [14.8]        15.0216      15.0     -0.2 
  5       18.3       [18.3]        18.2796      18.3      0.0 
  6       21.4       [21.1]*       21.1188      21.1      0.3*
  7       24.0       [23.8]*       23.6029      23.6      0.4*
  8       22.7       [22.4]*       22.3626      22.4      0.3*
  9       19.9       [19.7]        19.7130      19.7      0.2 
 10       16.0       [15.9]        15.6019      15.6      0.4*
 11       11.7       [11.7]        11.2886      11.3      0.4*
 12       -1.2       [-1.2]        -1.1484      -1.1     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.5

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.8       [ 0.8]         0.1680       0.2      0.6*
  2        3.8       [ 3.7]         3.5169       3.5      0.3*
  3        8.3       [ 8.3]         8.1788       8.2      0.1 
  4       14.2       [14.1]        14.1011      14.1      0.1 
  5       18.7       [18.6]        18.7045      18.7      0.0 
  6       23.6       [23.4]        23.5069      23.5      0.1 
  7       26.0       [25.8]        25.5481      25.5      0.5*
  8       22.9       [22.6]*       22.3753      22.4      0.5*
  9       21.7       [21.6]        21.3410      21.3      0.4*
 10       14.6       [14.4]        14.2548      14.3      0.3*
 11        7.3       [ 7.2]         7.1543       7.2      0.1 
 12        2.2       [ 2.1]         1.9713       2.0      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.2

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.1       [ 0.1]        -0.2740      -0.3      0.4*
  2        3.5       [ 3.3]         3.2002       3.2      0.3*
  3        8.3       [ 8.3]         8.0757       8.1      0.2*
  4       12.2       [12.2]        12.2577      12.3     -0.1 
  5       21.4       [21.2]        21.1776      21.2      0.2 
  6       23.9       [23.8]        23.5934      23.6      0.3*
  7       25.2       [25.0]        24.7976      24.8      0.4*
  8       25.4       [25.2]        24.9627      25.0      0.4*
  9       21.2       [20.9]*       20.5756      20.6      0.6*
 10       11.2       [11.2]        11.2283      11.2      0.0 
 11       10.2       [10.0]         9.7276       9.7      0.5*
 12        3.9       [ 3.8]         3.9695       4.0     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.1

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -1.1       [-1.2]        -1.1731      -1.2      0.1 
  2        1.1       [ 1.1]         0.9020       0.9      0.2*
  3        7.2       [ 7.1]         6.9400       6.9      0.3*
  4       12.4       [12.4]        12.5517      12.6     -0.2 
  5       18.2       [18.0]        18.4685      18.5     -0.3*
  6       23.7       [23.5]        23.6080      23.6      0.1 
  7       26.3       [26.1]*       25.8393      25.8      0.5*
  8       25.6       [25.5]        25.2666      25.3      0.3*
  9       20.0       [20.0]        19.7377      19.7      0.3*
 10        9.9       [ 9.8]         9.7461       9.7      0.2*
 11        7.9       [ 8.0]         8.1682       8.2     -0.3*
 12        2.6       [ 2.5]         2.4462       2.4      0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 1.4

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        4.9       [ 4.8]         4.6184       4.6      0.3*
  2        0.7       [ 0.6]         0.3274       0.3      0.4*
  3        8.7       [ 8.4]*        8.2101       8.2      0.5*
  4       12.4       [12.3]        12.0980      12.1      0.3*
  5       16.0       [15.8]        15.8453      15.8      0.2 
  6       22.2       [22.0]*       21.8588      21.9      0.3*
  7       24.8       [24.6]        24.3466      24.3      0.5*
  8       23.6       [23.3]*       23.0936      23.1      0.5*
  9       19.9       [19.8]        19.4190      19.4      0.5*
 10       14.1       [13.9]        13.6201      13.6      0.5*
 11        7.4       [ 7.3]         7.3843       7.4      0.0 
 12       -4.9       [-4.9]        -4.6558      -4.7     -0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.8

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        5.4       [ 5.3]         4.9881       5.0      0.4*
  2        6.3       [ 6.3]         6.4344       6.4     -0.1 
  3        9.5       [ 9.4]         9.2421       9.2      0.3*
  4       11.9       [11.8]        12.0054      12.0     -0.1 
  5       16.6       [16.4]*       16.2358      16.2      0.4*
  6       22.4       [22.3]        22.2647      22.3      0.1 
  7       24.2       [24.0]        23.8837      23.9      0.3*
  8       23.4       [23.1]*       22.7838      22.8      0.6*
  9       20.4       [20.3]        20.0177      20.0      0.4*
 10       13.6       [13.7]        13.3625      13.4      0.2 
 11       10.1       [10.1]         9.7454       9.7      0.4*
 12        4.8       [ 4.7]         4.7424       4.7      0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        1.2       [ 1.1]         1.0663       1.1      0.1 
  2        4.1       [ 4.1]         3.8261       3.8      0.3*
  3        8.6       [ 8.5]         8.4804       8.5      0.1 
  4       14.6       [14.6]        14.6289      14.6      0.0 
  5       21.5       [21.2]*       21.0335      21.0      0.5*
  6       23.6       [23.4]*       23.2245      23.2      0.4*
  7       25.4       [25.2]        24.9470      24.9      0.5*
  8       24.4       [24.3]        23.8359      23.8      0.6*
  9       20.6       [20.4]*       20.1574      20.2      0.4*
 10       14.9       [14.8]        14.4542      14.5      0.4*
 11        6.4       [ 6.4]         6.3627       6.4      0.0 
 12        4.6       [ 4.6]         4.3571       4.4      0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.5

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        1.9       [ 1.8]         1.6846       1.7      0.2 
  2        5.3       [ 5.2]         4.9609       5.0      0.3*
  3        7.6       [ 7.4]*        7.2080       7.2      0.4*
  4       13.6       [13.3]*       13.2052      13.2      0.4*
  5       16.8       [16.6]        16.5666      16.6      0.2 
  6       20.9       [20.7]*       20.5579      20.6      0.3*
  7       24.4       [24.2]*       23.9740      24.0      0.4*
  8       21.7       [21.4]*       21.2366      21.2      0.5*
  9       19.6       [19.4]        19.2847      19.3      0.3*
 10       13.3       [13.3]        13.0130      13.0      0.3*
 11        7.8       [ 7.8]         7.4877       7.5      0.3*
 12        2.9       [ 2.8]         2.8577       2.9      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 3.6

Chicago/O'Hare Int'l Arpt - 1984 to 1992

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Year=1984
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -8.2       [-8.2]        -7.5105      -7.5     -0.7*
  2        1.2       [ 1.1]         0.9874       1.0      0.2 
  3       -1.3       [-1.3]        -1.2298      -1.2     -0.1 
  4        7.8       [ 7.7]         7.5772       7.6      0.2*
  5       13.2       [13.1]        13.0847      13.1      0.1 
  6       21.4       [21.3]        21.5147      21.5     -0.1 
  7       21.4       [21.3]        21.6092      21.6     -0.2*
  8       22.9       [22.6]*       22.6075      22.6      0.3*
  9       16.3       [16.2]        16.3125      16.3      0.0 
 10       12.7       [12.6]        12.4948      12.5      0.2 
 11        3.4       [ 3.3]         3.4992       3.5     -0.1 
 12       -0.4       [-0.6]        -0.5914      -0.6      0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0

Year=1985
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -9.7       [-9.6]        -9.3728      -9.4     -0.3*
  2       -6.4       [-6.3]        -6.0152      -6.0     -0.4*
  3        4.2       [ 4.0]         3.8306       3.8      0.4*
  4       11.6       [11.6]        11.6404      11.6      0.0 
  5       15.8       [15.7]        16.1507      16.2     -0.4*
  6       17.7       [17.6]        18.0270      18.0     -0.3*
  7       22.0       [21.7]*       21.9997      22.0      0.0 
  8       20.8       [20.7]        21.0588      21.1     -0.3*
  9       18.7       [18.6]        18.5077      18.5      0.2 
 10       11.5       [11.5]        11.5644      11.6     -0.1 
 11        3.3       [ 3.3]         3.8519       3.9     -0.6*
 12       -8.2       [-8.3]        -8.0996      -8.1     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -1.9

Year=1986
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -5.0       [-4.9]        -4.6505      -4.7     -0.3*
  2       -4.3       [-4.6]*       -4.4180      -4.4      0.1 
  3        4.7       [ 4.7]         4.7693       4.8     -0.1 
  4       10.9       [10.8]        10.9583      11.0     -0.1 
  5       15.4       [15.3]        15.1912      15.2      0.2*
  6       19.2       [19.1]        19.3804      19.4     -0.2 
  7       24.0       [23.9]        24.1226      24.1     -0.1 
  8       20.4       [20.3]        20.4809      20.5     -0.1 
  9       19.4       [19.3]        19.1559      19.2      0.2 
 10       12.2       [12.0]        11.9280      11.9      0.3*
 11        2.3       [ 2.3]         2.3495       2.3      0.0 
 12       -0.7       [-0.7]        -0.7198      -0.7      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.1

Year=1987
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -3.3       [-3.3]        -2.9435      -2.9     -0.4*
  2        1.2       [ 1.1]         1.0061       1.0      0.2 
  3        5.1       [ 4.9]*        4.7536       4.8      0.3*
  4       10.4       [10.4]        10.2994      10.3      0.1 
  5       17.5       [17.4]        17.7531      17.8     -0.3*
  6       22.6       [22.5]        22.8511      22.9     -0.3*
  7       25.0       [24.8]        24.8992      24.9      0.1 
  8       22.3       [22.2]        22.3492      22.3      0.0 
  9       18.5       [18.3]        18.1227      18.1      0.4*
 10        8.6       [ 8.5]         8.4312       8.4      0.2 
 11        6.7       [ 6.6]         6.8457       6.8     -0.1 
 12        0.2       [ 0.1]         0.3457       0.3     -0.1 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0.1

Year=1988
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -6.7       [-6.7]        -6.6570      -6.7      0.0 
  2       -5.1       [-5.1]        -5.0144      -5.0     -0.1 
  3        3.5       [ 3.4]         3.6880       3.7     -0.2*
  4        9.1       [ 9.2]         9.0694       9.1      0.0 
  5       16.2       [16.2]        16.7757      16.8     -0.6*
  6       22.2       [22.2]        22.6705      22.7     -0.5*
  7       25.0       [25.1]        25.3786      25.4     -0.4*
  8       25.1       [24.9]        24.9477      24.9      0.2*
  9       18.9       [18.9]        18.8889      18.9      0.0 
 10        7.9       [ 7.9]         8.0503       8.1     -0.2 
 11        5.5       [ 5.5]         5.4823       5.5      0.0 
 12       -2.3       [-2.2]        -2.0012      -2.0     -0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -2.1

Year=1989
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        0.3       [ 0.4]         0.2457       0.2      0.1 
  2       -6.8       [-6.7]        -6.5997      -6.6     -0.2*
  3        2.6       [ 2.6]         2.4037       2.4      0.2*
  4        8.3       [ 8.2]         8.2785       8.3      0.0 
  5       14.4       [14.4]        14.7080      14.7     -0.3*
  6       19.8       [19.6]        19.9738      20.0     -0.2 
  7       23.4       [23.3]        23.3520      23.4      0.0 
  8       21.9       [21.9]        21.7764      21.8      0.1 
  9       16.8       [16.7]        16.9622      17.0     -0.2 
 10       12.4       [12.3]        12.1812      12.2      0.2*
 11        3.3       [ 3.2]         3.4051       3.4     -0.1 
 12       -8.1       [-8.0]        -7.9406      -7.9     -0.2 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.6

Year=1990
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1        1.2       [ 1.2]         1.2836       1.3     -0.1 
  2       -0.3       [-0.3]        -0.1100      -0.1     -0.2 
  3        5.3       [ 5.3]         5.2292       5.2      0.1 
  4       10.1       [10.2]        10.1721      10.2     -0.1 
  5       13.6       [13.5]        13.5006      13.5      0.1 
  6       21.1       [21.0]        21.0147      21.0      0.1 
  7       22.2       [22.0]*       22.1520      22.2      0.0 
  8       22.3       [22.1]*       22.0803      22.1      0.2 
  9       18.9       [19.0]        18.9437      18.9      0.0 
 10       10.9       [11.1]        10.9371      10.9      0.0 
 11        7.2       [ 7.3]         7.2716       7.3     -0.1 
 12       -1.7       [-1.7]        -1.6659      -1.7      0.0 
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = 0

Year=1991
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -6.1       [-6.1]        -5.7826      -5.8     -0.3*
  2       -0.4       [-0.4]        -0.4522      -0.5      0.1 
  3        4.8       [ 4.8]         4.7924       4.8      0.0 
  4       11.3       [11.2]        11.2029      11.2      0.1 
  5       18.8       [18.7]        18.5118      18.5      0.3*
  6       22.3       [22.4]        22.6613      22.7     -0.4*
  7       24.3       [24.2]        24.3347      24.3      0.0 
  8       23.2       [23.1]        23.2504      23.3     -0.1 
  9       17.8       [17.8]        17.8302      17.8      0.0 
 10       11.9       [11.9]        11.9773      12.0     -0.1 
 11        1.9       [ 1.9]         2.0378       2.0     -0.1 
 12       -0.8       [-0.8]        -0.5600      -0.6     -0.2*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -0.7

Year=1992
Month   Org.Mean   [Derived]    Mean from hrs  rounded   Diff
  1       -2.1       [-2.1]        -1.7077      -1.7     -0.4*
  2        0.8       [ 0.8]         0.6713       0.7      0.1 
  3        3.2       [ 3.3]         3.2213       3.2      0.0 
  4        8.0       [ 8.1]         7.9051       7.9      0.1 
  5       13.9       [13.8]        14.8133      14.8     -0.9*
  6       18.4       [18.3]        18.6960      18.7     -0.3*
  7       20.9       [20.8]        20.7714      20.8      0.1 
  8       19.6       [19.4]*       19.6789      19.7     -0.1 
  9       17.2       [17.1]        17.3194      17.3     -0.1 
 10       10.3       [10.4]        10.5182      10.5     -0.2 
 11        3.6       [ 3.6]         3.5725       3.6      0.0 
 12       -1.8       [-1.7]        -1.4904      -1.5     -0.3*
Net yearly temp diff between Org Monthly measure and hourly calc mean (+ is org is higher) = -2

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