Monthly Means and Extremes                                         Period:     1971-2000
Riddle, OR


Parameter                  Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec    Year
Mean Temperature(F)
   Maximum                 49.1  54.4  58.3  62.8  69.2  76.1  83.3  83.8  79.1  68.4  54.5  47.9    65.6
   Minimum                 33.7  35.5  37.3  39.5  44.3  49.2  53.2  52.3  46.6  41.4  38.4  34.2    42.1
   Mean                    41.4  45.0  47.8  51.2  56.8  62.7  68.3  68.1  62.9  54.9  46.5  41.1    53.9
Extreme Temperature(F)
   Maximum                   69    80    85    94    99   101   105   110   108   102    77    74     110
   Minimum                   11     8    25     9    31    37    37    40    32    22    13     3       3
Precipitation(inches)
   Monthly mean            4.70  3.86  3.51  2.42  1.56   .86   .38   .62  1.01  2.15  5.20  5.28   31.55
   Extreme 24 hr           2.85  3.26  2.30  1.37  1.22  1.48  1.17  1.36  1.85  2.02  2.87  2.75    2.87
Snowfall(inches)
   Monthly mean             .64   .94   .17   .00   .00   .00   .00   .00   .00   .00   .26   .79    2.97
Average number of days
   Temperature
      Maximum 90 or more     .0    .0    .0    .1    .9   2.0   7.9   8.3   5.0    .8    .0    .0    25.0
      Maximum 32 or less     .1    .1    .0    .0    .0    .0    .0    .0    .0    .0    .0    .5      .7
      Minimum 32 or less   10.2   6.9   5.4   1.9    .2    .0    .0    .0    .0   1.5   3.9   8.8    39.1
      Minimum 0 or less      .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0      .0
   Precipitation
      .01 inches or more   16.8  15.6  16.2  13.9   9.6   5.8   2.2   2.8   4.9   9.2  17.5  17.2   132.1
      .10 inches or more    9.6   9.1   9.3   7.1   5.3   2.6   1.0   1.7   2.6   5.0  11.4  10.9    75.1
      .50 inches or more    2.9   2.1   1.8   1.0    .7    .3    .2    .4    .6   1.3   3.3   3.5    18.0
      1.00 inches or more   1.0    .4    .4    .2    .1    .1    .0    .0    .1    .3    .9    .8     4.3
   Heating days @ 65 (F)
   Growing days @ 50 (F)    709   549   517   400   260   107    26    24   101   300   537   721    4261
   Growing days @ 50 (F)      5    20    45    97   227   388   572   568   398   186    34     7    2542