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:(100227) AMERICAN FALLS 1 SW      
From Year=1948 To Year=1999                                   #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 33.0 16.4 24.7  55  23/1970 -38  25/1949  36.4 53  4.5 49  0.0 13.4 28.4  4.0
Fe 38.9 20.9 29.9  65  24/1986 -30  01/1985  38.9 63 19.4 85  0.0  6.4 24.2  1.8
Ma 47.9 27.0 37.5  78  28/1986 -11  02/1960  46.0 86 26.4 85  0.0  1.4 23.5  0.3
Ap 58.9 33.8 46.4  87  29/1992  15  02/1977  52.9 87 40.0 75  0.0  0.0 13.4  0.0
Ma 68.4 41.4 54.9  92  19/1954  21  01/1972  62.5 92 48.5 53  0.1  0.0  2.7  0.0
Jn 77.9 48.1 63.0 103  25/1988  29  07/1995  70.6 88 57.6 98  3.1  0.0  0.2  0.0
Jl 87.3 54.1 70.7 102  26/1975  36  22/1954  75.4 88 62.9 93 12.7  0.0  0.0  0.0
Au 86.3 52.9 69.6 103  04/1994  33  25/1992  75.2 81 63.4 68 10.8  0.0  0.0  0.0
Se 76.3 44.5 60.4  95  02/1983  22  25/1970  68.0 90 54.3 65  1.7  0.0  1.7  0.0
Oc 62.8 35.2 49.0  87  03/1987  10  29/1971  57.5 88 43.3 49  0.0  0.1 11.5  0.0
No 45.8 27.1 36.4  70  01/1965 -12  27/1976  42.4 65 28.1 52  0.0  2.3 21.8  0.2
De 35.1 19.2 27.2  72  26/1987 -23  22/1990  35.6 58 13.1 85  0.0 11.1 28.3  1.8
An 59.9 35.0 47.5 103 19880625 -38 19490125  50.7 81 43.6 85 28.3 34.7155.6  8.1
Wi 35.6 18.8 27.2  72 19871226 -38 19490125  32.7 53 16.8 49  0.0 30.9 80.8  7.6
Sp 58.4 34.1 46.3  92 19540519 -11 19600302  53.5 92 41.7 64  0.1  1.4 39.5  0.3
Su 83.9 51.7 67.8 103 19880625  29 19950607  72.4 88 62.8 93 26.6  0.0  0.2  0.0
Fa 61.6 35.6 48.6  95 19830902 -12 19761127  52.6 63 44.1 85  1.7  2.4 35.0  0.2
Station:(100227) AMERICAN FALLS 1 SW       From Year=1948 To Year=1999
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  1.06   3.54  80   0.13  61   1.12  27/1970   9.0  32.7  50  10   4   0   0
Fe  0.83   3.58  86   0.00  97   1.00  17/1986   4.8  16.5  94   8   3   0   0
Ma  1.07   3.35  89   0.11  65   1.40  21/1995   3.0  11.8  85   9   3   0   0
Ap  1.11   3.13  71   0.13  59   0.91  23/1965   1.2  11.5  55   8   4   0   0
Ma  1.55   4.17  80   0.13  92   2.06  16/1987   0.5   7.0  55   9   4   1   0
Jn  1.02   3.49  95   0.08  74   1.10  05/1993   0.0   0.0  49   7   3   0   0
Jl  0.53   3.33  84   0.00  63   1.05  31/1994   0.0   0.0  49   3   1   0   0
Au  0.61   4.05  68   0.00  96   1.24  14/1968   0.0   0.0  48   4   2   0   0
Se  0.73   3.22  82   0.00  57   1.16  26/1982   0.0   0.0  48   5   2   0   0
Oc  0.82   2.53  74   0.00  52   1.21  24/1974   1.4  17.1  49   5   2   0   0
No  1.07   3.29  83   0.00  59   1.10  14/1971   2.6  17.8  85   8   3   0   0
De  0.97   4.60  83   0.11  89   1.34  23/1964   6.9  46.0  83   9   3   0   0
An 11.39  21.88  83   4.64  66   2.06 19870516  29.3  71.7  49  84  35   4   0
Wi  2.86   6.49  84   0.94  66   1.34 19641223  20.6  67.0  84  27  10   1   0
Sp  3.73   8.23  91   0.99  69   2.06 19870516   4.6  21.2  55  26  11   1   0
Su  2.17   5.79  68   0.26  74   1.24 19680814   0.0   0.0  49  14   6   1   0
Fa  2.63   6.39  82   0.60  55   1.21 19741024   4.0  17.8  85  18   8   1   0