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:(101022) BOISE WSFO AIRPORT       
From Year=1940 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 36.7 21.8 29.3  63  09/1953 -17  31/1950  41.0 53 10.3 49  0.0  9.8 26.0  1.6
Fe 44.2 27.3 35.8  71  29/1992 -15  05/1989  43.3 63 23.2 89  0.0  2.8 20.7  0.4
Ma 52.8 31.7 42.2  81  29/1978   6  01/1971  48.9 92 35.9 85  0.0  0.2 17.2  0.0
Ap 61.6 37.1 49.4  92  25/1946  19  13/1968  56.0 87 43.8 70  0.1  0.0  8.0  0.0
Ma 71.0 44.3 57.6  98  26/1966  22  05/1982  64.3 58 52.1 53  1.2  0.0  1.7  0.0
Jn 79.6 51.5 65.5 109  19/1940  31  01/1984  72.8 61 59.3 53  5.3  0.0  0.0  0.0
Jl 90.2 58.1 74.1 111  19/1960  35  05/1986  80.7 60 65.0 93 18.6  0.0  0.0  0.0
Au 88.2 56.9 72.5 110  04/1961  34  24/1992  78.6 71 67.2 80 15.7  0.0  0.0  0.0
Se 77.6 48.7 63.1 102  01/1945  23  14/1970  70.9 63 56.2 85  3.5  0.0  0.5  0.0
Oc 64.8 39.2 52.0  94  01/1992  11  29/1971  59.8 88 45.1 46  0.1  0.0  5.7  0.0
No 48.4 30.5 39.4  74  01/1988  -3  15/1955  45.3 53 27.6 85  0.0  1.0 17.6  0.1
De 38.5 23.6 31.1  65  22/1964 -25  22/1990  38.4 73 12.6 85  0.0  6.9 25.7  1.0
An 62.8 39.2 51.0 111 19600719 -25 19901222  53.7 98 45.8 85 44.5 20.6123.2  3.1
Wi 39.8 24.3 32.0  71 19920229 -25 19901222  37.5 78 22.2 49  0.0 19.4 72.4  3.0
Sp 61.8 37.7 49.7  98 19660526   6 19710301  56.0 92 44.6 55  1.3  0.2 27.0  0.0
Su 86.0 55.5 70.7 111 19600719  31 19840601  75.6 61 65.1 93 39.6  0.0  0.0  0.0
Fa 63.6 39.5 51.5 102 19450901  -3 19551115  57.5 63 44.1 85  3.6  1.0 23.8  0.1
Station:(101022) BOISE WSFO AIRPORT        From Year=1940 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  1.44   3.87  70   0.12  49   1.13  18/1953   6.4  21.4  64  12   5   0   0
Fe  1.14   3.70  86   0.18  97   0.92  04/1951   3.6  25.2  49  10   4   0   0
Ma  1.22   3.46  89   0.17  92   1.60  20/1981   1.7  11.9  51  10   4   0   0
Ap  1.22   3.04  55   0.09  49   1.27  06/1969   0.6   8.0  67   8   4   0   0
Ma  1.29   4.40  98   0.00  92   1.77  29/1990   0.1   4.0  64   8   4   0   0
Jn  0.90   3.41  41   0.01  60   1.91  12/1958   0.0   0.0  40   6   3   0   0
Jl  0.27   1.62  82   0.00  42   0.94  30/1960   0.0   0.0  40   2   1   0   0
Au  0.30   2.37  68   0.00  43   1.61  13/1979   0.0   0.0  40   3   1   0   0
Se  0.61   2.93  86   0.00  43   1.73  11/1976   0.0   0.0  40   4   2   0   0
Oc  0.78   2.25  56   0.00  52   0.68  29/1982   0.1   2.7  71   6   3   0   0
No  1.37   3.36  88   0.14  76   0.78  26/1971   2.2  18.6  85  10   5   0   0
De  1.37   4.23  83   0.09  76   1.03  23/1955   5.9  26.2  83  11   5   0   0
An 11.92  18.77  83   6.64  66   1.91 19580612  20.6  46.5  64  90  40   3   0
Wi  3.95   6.45  69   1.31  77   1.13 19530118  15.9  43.3  49  33  14   1   0
Sp  3.73   7.11  80   0.83  92   1.77 19900529   2.4  11.9  51  26  12   1   0
Su  1.48   4.13  41   0.08  66   1.91 19580612   0.0   0.0  40  11   4   1   0
Fa  2.76   4.99  40   0.40  52   1.73 19760911   2.3  18.6  85  20  10   1   0