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:(100470) ASHTON                   
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 28.0  9.4 18.7  54  01/1981 -32  01/1979  29.8 53  4.8 49  0.0 20.2 30.5  8.2
Fe 33.4 13.0 23.3  61  06/1963 -28  01/1951  33.4 63 11.2 64  0.0 11.5 27.7  5.1
Ma 40.5 18.6 29.6  69  28/1986 -20  05/1955  38.7 86 19.8 55  0.0  3.7 29.3  2.1
Ap 53.1 28.2 40.6  81  27/1987  -1  01/1975  48.9 87 32.7 75  0.0  0.1 22.2  0.0
Ma 64.9 36.3 50.6  89  12/1994   8  02/1967  56.7 58 44.7 75  0.0  0.0  8.6  0.0
Jn 73.1 42.2 57.7  96  26/1988  24  03/1951  64.4 88 51.0 98  0.4  0.0  1.8  0.0
Jl 81.5 46.7 64.1  97  19/1960  28  03/1997  67.9 88 56.0 93  1.8  0.0  0.2  0.0
Au 80.6 45.1 62.8  96  04/1961  26  27/1964  68.5 98 58.1 64  1.4  0.0  0.5  0.0
Se 71.2 37.6 54.4  95  03/1950  13  29/1985  60.5 90 47.5 65  0.1  0.0  6.7  0.0
Oc 58.6 29.3 43.9  85  01/1957   0  27/1970  50.4 88 38.2 70  0.0  0.2 21.3  0.0
No 40.1 20.2 30.2  68  01/1965 -16  25/1993  38.1 98 22.2 56  0.0  6.6 27.6  1.8
De 29.7 10.9 20.3  56  02/1995 -32  05/1972  28.2 58 10.0 90  0.0 18.4 30.6  6.2
An 54.6 28.1 41.3  97 19600719 -32 19721205  44.6 81 38.1 64  3.7 60.6207.0 23.4
Wi 30.4 11.1 20.8  61 19630206 -32 19721205  27.5 81 13.1 49  0.0 50.1 88.8 19.5
Sp 52.8 27.7 40.2  89 19940512 -20 19550305  45.0 94 35.1 55  0.0  3.8 60.1  2.1
Su 78.4 44.7 61.5  97 19600719  24 19510603  65.4 88 57.2 93  3.6  0.0  2.5  0.0
Fa 56.7 29.0 42.8  95 19500903 -16 19931125  46.4 63 38.6 85  0.1  6.8 55.6  1.8
Station:(100470) ASHTON                    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  2.12   5.17  70   0.24  61   2.61  23/1982  22.2  59.0  82  13   7   1   0
Fe  1.75   3.99  52   0.32  67   1.27  02/1952  15.8  46.4  52  10   6   1   0
Ma  1.56   4.12  95   0.23  65   1.36  08/1986  11.1  32.0  80  10   5   0   0
Ap  1.42   2.90  86   0.13  77   1.53  28/1954   4.4  14.5  75   8   5   1   0
Ma  2.15   5.68  81   0.58  56   1.20  28/1950   1.5   9.2  75   9   6   1   0
Jn  1.83   5.10  64   0.32  88   1.10  11/1984   0.0   1.0  90   8   5   1   0
Jl  0.89   3.15  93   0.00  59   1.78  17/1967   0.0   0.0  49   5   2   1   0
Au  1.09   4.89  51   0.07  88   1.32  19/1965   0.0   0.0  48   6   3   1   0
Se  1.19   2.94  61   0.00  53   1.30  30/1949   0.2   3.0  78   6   3   1   0
Oc  1.40   3.91  94   0.00  52   1.44  18/1949   2.4  10.5  51   6   4   1   0
No  1.99   4.30  94   0.00  76   1.05  15/1954  13.2  54.5  85  10   6   1   0
De  2.20   5.05  71   0.18  86   0.89  03/1961  22.7  56.8  83  12   7   1   0
An 19.61  29.27  82  12.51  53   2.61 19820123  93.4 172.7  75 103  60   9   1
Wi  6.08   9.91  82   2.27  77   2.61 19820123  60.6 113.7  52  35  20   2   0
Sp  5.13   9.56  95   2.53  56   1.53 19540428  17.1  49.0  64  28  16   2   0
Su  3.81   7.94  68   0.53  88   1.78 19670717   0.0   1.0  90  19  11   2   0
Fa  4.58   9.41  94   1.08  52   1.44 19491018  15.7  55.4  85  22  13   3   0