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:(101663) CHALLIS                  
From Year=1931 To Year=1996                                   #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 30.3  9.4 19.9  59  30/1971 -33  25/1949  33.9 53  0.6 49  0.0 16.6 30.3  7.3
Fe 37.8 15.3 26.6  65  26/1950 -31  09/1933  37.7 63 15.6 42  0.0  7.7 27.2  2.8
Ma 47.4 22.9 35.1  75  02/1943 -15  01/1960  44.0 34 27.0 52  0.0  1.5 28.2  0.3
Ap 58.0 30.6 44.3  85  24/1977   3  01/1936  50.3 90 36.8 75  0.0  0.0 18.3  0.0
Ma 67.6 38.6 53.1  94  02/1937  16  01/1954  60.3 92 46.7 42  0.1  0.0  5.6  0.0
Jn 75.7 45.4 60.6 100  23/1992  27  13/1993  67.5 88 55.1 51  2.1  0.0  0.7  0.0
Jl 85.5 51.0 68.3 103  26/1964  31  02/1955  73.4 85 60.2 93  9.5  0.0  0.0  0.0
Au 83.8 48.9 66.4 103  04/1961  28  31/1932  72.3 61 61.0 76  6.7  0.0  0.1  0.0
Se 74.0 40.8 57.4  94  03/1950  17  18/1965  63.1 90 50.5 86  0.6  0.0  3.6  0.0
Oc 61.5 31.9 46.7  84  10/1936   1  29/1971  53.7 88 40.4 46  0.0  0.1 16.5  0.0
No 43.5 21.1 32.4  75  01/1937 -17  24/1985  39.0 49 22.2 85  0.0  3.8 27.0  0.8
De 32.1 12.0 22.1  59  27/1980 -34  23/1983  32.8 39  7.1 85  0.0 15.0 30.1  4.4
An 58.1 30.7 44.4 103 19610804 -34 19831223  47.1 92 40.6 85 19.0 44.8187.5 15.6
Wi 33.4 12.2 22.9  65 19500226 -34 19831223  32.3 34 11.9 49  0.0 39.3 87.5 14.5
Sp 57.7 30.7 44.2  94 19370502 -15 19600301  51.2 92 39.8 55  0.1  1.6 52.1  0.3
Su 81.7 48.4 65.1 103 19610804  27 19930613  69.9 61 59.7 93 18.3  0.0  0.8  0.0
Fa 59.6 31.3 45.5  94 19500903 -17 19851124  49.2 37 38.8 85  0.6  3.9 47.1  0.8
Station:(101663) CHALLIS                   From Year=1931 To Year=1996
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  0.47   2.13  43   0.00  61   1.25  21/1943   4.3  14.6  80   6   2   0   0
Fe  0.34   1.27  86   0.00  56   0.74  01/1963   2.5  10.6  52   4   1   0   0
Ma  0.44   1.64  74   0.02  36   0.57  06/1981   2.0  10.5  52   5   2   0   0
Ap  0.56   1.70  67   0.00  45   0.90  14/1973   0.5   8.5  63   5   2   0   0
Ma  1.10   3.49  57   0.00  40   1.00  24/1962   0.1   2.0  50   8   4   0   0
Jn  1.18   3.83  63   0.00  35   1.28  21/1948   0.0   0.0  31   8   4   0   0
Jl  0.65   2.58  83   0.00  33   1.85  10/1983   0.0   0.0  31   5   2   0   0
Au  0.60   1.94  83   0.01  37   0.75  20/1974   0.0   0.0  31   5   2   0   0
Se  0.66   2.83  40   0.00  35   1.60  09/1950   0.0   2.0  78   4   2   0   0
Oc  0.44   2.08  33   0.00  31   0.88  30/1933   0.2   2.2  49   4   1   0   0
No  0.43   1.67  73   0.00  37   0.85  21/1946   2.3  18.6  85   5   2   0   0
De  0.52   3.72  64   0.00  38   1.62  22/1964   3.7  15.6  71   5   2   0   0
An  7.40  11.98  95   2.62  35   1.85 19830710  15.7  31.0  42  65  25   2   0
Wi  1.33   4.87  65   0.24  77   1.62 19641222  10.5  25.4  43  15   5   0   0
Sp  2.10   4.16  57   0.55  54   1.00 19620524   2.6  10.5  52  18   7   0   0
Su  2.43   5.63  83   0.20  35   1.85 19830710   0.0   0.0  31  18   8   1   0
Fa  1.53   4.19  40   0.16  87   1.60 19500909   2.6  18.6  85  13   5   0   0