For monthly and annual means, thresholds, and sums:
 Months with  5 or more missing   days are not considered
 Years  with  1 or more missing months are not considered

Station:(104230) HENRY                    
From Year=1971 To Year=1987                                   #Day-Max #Day-Min
       Averages         Daily Extremes         Mean Extremes   >=   =<   =<  =<
    Max  Min Mean  High---Date  Low---Date   High-Yr  Low-Yr   90   32   32   0
-------------------------------------------------------------------------------
Ja 27.1  3.9 15.5  53  16/1974 -47  01/1979  25.0 81  3.5 79  0.0 20.9 30.4 12.4
Fe 34.4  7.6 21.0  55  24/1981 -40  02/1972  26.4 80 14.7 84  0.0 10.6 27.8  9.2
Ma 40.8 14.5 27.9  62  23/1972 -23  12/1976  34.0 81 17.3 76  0.0  4.1 29.1  4.2
Ap 52.0 22.8 36.9  78  27/1987  -4  05/1983  42.4 81 32.7 73  0.0  0.6 26.3  0.5
Ma 61.5 33.1 47.3  83  31/1986  13  16/1974  51.6 87 43.1 78  0.0  0.0 15.1  0.0
Jn 72.2 39.9 56.1  90  14/1974  21  01/1974  61.1 86 52.5 78  0.2  0.0  4.2  0.0
Jl 80.4 43.6 61.7  93  14/1974  28  08/1981  65.6 85 59.7 72  1.1  0.0  0.7  0.0
Au 79.4 41.9 60.6  94  25/1985  19  27/1976  65.0 83 56.5 74  1.1  0.0  3.0  0.0
Se 69.5 34.4 51.7  88  01/1983  13  20/1983  56.1 81 47.3 72  0.0  0.0 10.8  0.0
Oc 56.4 26.0 41.2  86  04/1980  -7  30/1972  45.7 83 37.1 71  0.0  0.6 25.2  0.2
No 39.9 15.6 27.4  68  12/1971 -20  16/1978  32.7 81 23.3 78  0.0  7.5 27.6  3.7
De 30.9  7.6 20.3  52  26/1980 -40  31/1978  24.3 80 14.5 71  0.0 15.9 29.1  9.9
An 53.7 24.2 39.0  94 19850825 -47 19790101  42.7 81 38.1 82  2.5 60.2229.2 40.3
Wi 30.8  6.4 18.9  55 19810224 -47 19790101  24.7 81 15.0 84  0.0 47.5 87.2 31.6
Sp 51.4 23.5 37.4  83 19860531 -23 19760312  41.3 81 33.2 76  0.0  4.7 70.5  4.8
Su 77.3 41.8 59.5  94 19850825  19 19760827  61.7 81 56.6 78  2.5  0.0  7.9  0.0
Fa 55.3 25.3 40.1  88 19830901 -20 19781116  43.7 83 37.5 72  0.0  8.0 63.6  3.9
Station:(104230) HENRY                     From Year=1971 To Year=1987
Missing data not yet determined
       Total Precipitation       Precipitation  Total Snowfall  #Days Precip >=
    Mean   High--Yr    Low--Yr     1-Day Max    Mean   High-Yr .01 .10 .50 1.00"
-------------------------------------------------------------------------------
Ja  1.95   4.64  72   0.69  81   0.92  12/1972  17.7  36.2  80  11   7   1   0
Fe  1.72   4.59  86   0.50  81   1.20  20/1985  15.2  24.1  86   9   6   1   0
Ma  1.64   4.05  76   0.17  87   1.10  12/1985  10.6  22.9  82   9   6   1   0
Ap  1.03   2.13  76   0.07  87   0.91  26/1976   4.3  13.1  83   6   4   0   0
Ma  2.44   4.77  81   0.85  76   1.16  08/1972   1.5   6.8  81  10   7   2   0
Jn  1.33   2.96  84   0.13  78   0.87  19/1979   0.1   1.2  84   7   4   0   0
Jl  1.65   3.96  82   0.02  81   1.80  23/1985   0.0   0.0  72   5   4   1   0
Au  1.35   4.23  83   0.27  81   1.63  11/1983   0.0   0.0  72   6   4   1   0
Se  1.70   4.73  73   0.00  74   1.50  02/1973   0.4   3.0  73   6   4   1   0
Oc  1.59   3.73  71   0.03  78   1.36  10/1972   2.5  22.0  71   6   5   1   0
No  1.87   4.40  83   0.09  76   1.56  20/1973  14.6  39.0  85   9   6   1   0
De  2.13   4.91  77   0.10  76   1.47  03/1977  17.9  46.5  81  10   8   1   0
An 20.38  30.28  83  17.65  81   1.80 19850723  84.9 114.1  83  95  62  10   1
Wi  5.80  10.58  72   2.01  77   1.47 19771203  50.8  88.5  82  30  20   2   0
Sp  5.11   7.43  81   3.76  74   1.16 19720508  16.5  30.1  84  26  16   2   0
Su  4.32   8.09  83   2.04  81   1.80 19850723   0.1   1.2  84  18  11   2   0
Fa  5.15  10.35  73   2.19  76   1.56 19731120  17.5  41.7  85  21  15   2   0