Monthly Means and Extremes
Grizzly, Oregon
1961-1990

Parameter                    Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec    Year
Mean Temperature(F)
   Maximum                   40.4    45.0    49.5    55.6    63.6    73.3    81.9    81.8    72.8    62.6    47.4    40.8    59.8
   Minimum                   21.7    24.5    25.4    27.4    32.2    39.2    42.1    42.4    36.7    31.4    27.3    22.0    31.4
   Mean                      31.0    34.7    37.5    41.5    47.7    56.3    62.0    62.1    54.8    47.0    37.4    31.4    45.7
Extreme Temperature(F)
   Maximum                     63      67      78      84      96      98      99     104      98      88      76      69     101
   Minimum                    -25     -18       0       9       8      19      25      23      14       3     -14     -29     -18
Precipitation(inches)
   Monthly mean              1.54    1.00    1.09     .97    1.23    1.02     .42     .77     .65     .88    1.79    1.36   12.31
   Extreme 24 hr             1.98     .93    1.13    1.49    1.66    1.40    1.00    1.33    1.63     .80    2.75    1.70    1.77
Snowfall(inches)
   Monthly mean              7.97    4.06    4.25    2.62     .55     .00     .00     .00     .00     .49    4.81    7.63   38.53
Average number of days
   Temperature
      Maximum 90 or more       .0      .0      .0      .0      .2     1.7     6.2     6.7      .7      .0      .0      .0    16.6
      Maximum 32 or less      5.4     2.1      .2      .0      .0      .0      .0      .0      .0      .0     1.4     5.2    13.7
      Minimum 32 or less     24.9    23.2    25.5    22.2    15.5     5.2     2.0     1.3     7.8    16.3    20.4    25.4   185.4
      Minimum 0 or less       2.0      .6      .0      .0      .0      .0      .0      .0      .0      .0      .4     1.4     3.9
   Precipitation
      .01 inches or more      8.0     6.8     8.1     6.4     6.0     5.0     2.4     3.4     3.3     5.5     9.3     7.8    72.3
      .10 inches or more      4.8     3.6     4.3     3.5     4.0     3.1     1.3     2.2     2.1     3.4     5.0     4.2    40.1
      .50 inches or more       .7      .3      .1      .4      .6      .3      .2      .5      .3      .3      .9      .6     4.8
      1.00 inches or more      .0      .0      .0      .0      .1      .1      .0      .1      .1      .0      .2      .1      .8
Degree Days
   Heating days @ 65       1054.1   853.9   853.5   704.9   536.9   276.0   135.7   135.1   311.8   559.5   828.2  1040.4  7176.5
   Growing days @ 50           .2      .3     2.0    13.5    65.7   211.7   376.2   375.5   177.7    51.0     2.2      .5  1356.1