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                                                 Monthly Means and Extremes
                                                 Sexton Summit, Oregon   Period:     1961-1990

Parameter                 Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Year
Mean Temperature (F)
   Maximum                 41.4  43.5  45.1  50.7  59.3  67.4  74.6  74.7  68.7  58.8  45.5  41.3   56.0
   Minimum                 31.3  32.3  31.7  33.4  38.9  45.6  51.3  52.5  48.9  43.4  35.2  31.7   39.7
   Mean                    36.4  37.9  38.4  42.0  49.1  56.5  62.9  63.6  58.8  51.1  40.3  36.5   47.8
Extreme Temperature (F)
   Maximum                   65    67    74    80    91    95    94    97    95    87    77    66     97
   Minimum                   -2     3    15    19    22    27    36    38    31    20    15    -4     -4
Precipitation (inches)
   Monthly mean            5.78  4.07  3.98  2.24  1.49   .88   .33   .76  1.27  2.98  6.29  5.90  36.82
   Extreme 24 hour         5.25  3.72  1.91  1.89  2.86  2.16   .83  1.32  1.80  3.08  3.89  3.95   5.25
Snowfall (inches)
   Monthly mean           19.09 15.28 17.21 10.41  1.93   .10   .00   .00   .11  1.34 10.26 20.31  96.52
Average number of days
   Temperature
      Maximum 90 or more     .0    .0    .0    .0    .0    .3    .9   1.3    .3    .0    .0    .0    2.9
      Maximum 32 or less    5.4   3.3   2.6    .8    .1    .0    .0    .0    .0    .1   2.1   5.9   19.4
      Minimum 32 or less   17.5  15.1  18.2  16.3   7.0    .5    .0    .0    .1   2.8  11.8  17.5  106.4
      Minimum 0 or less      .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0     .0
   Precipitation
      .01 inches or more   15.2  13.9  16.3  12.1   8.2   5.2   2.3   3.1   5.5   8.8  15.9  16.0  123.1
      .10 inches or more    9.3   8.7   9.9   6.5   4.2   2.8   1.0   1.9   3.2   5.6  11.0  10.7   75.8
      .50 inches or more    3.6   2.3   2.3   1.1    .6    .3    .1    .5    .8   2.1   3.9   3.5   21.8
      1.00 inches or more   1.5    .8    .5    .1    .1    .0    .0    .1    .2    .7   1.6   1.3    7.4
Degree Days
   Heating days @ 65F       888   764   825   689   501   283   135   124   230   441   741   884   6495
   Growing days @ 50F         5     7    10    35   106   226   404   423   288   143    16     6   1667

                                                                         Oregon Climate Service