Untitled Document
                                                 Monthly Means and Extremes
                                                 Grants Pass, Oregon     Period:     1961-1990

Parameter                 Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Year
Mean Temperature (F)
   Maximum                 47.6  54.9  60.5  67.0  74.7  83.0  90.1  89.8  83.1  70.0  53.8  46.3   68.3
   Minimum                 32.7  34.4  36.0  38.4  43.6  49.7  53.1  52.7  46.7  41.2  37.9  33.6   41.7
   Mean                    40.2  44.6  48.3  52.7  59.1  66.3  71.6  71.3  64.9  55.6  45.9  39.9   55.0
Extreme Temperature (F)
   Maximum                   69    76    82    93   102   108   109   110   108    98    72    67    110
   Minimum                    2    12    22    25    29    33    39    40    30    20    12    -1     -1
Precipitation (inches)
   Monthly mean            5.17  3.82  3.52  1.80  1.16   .51   .22   .48   .90  2.45  5.31  5.69  31.12
   Extreme 24 hour         3.35  2.17  2.23  1.41  1.47   .98   .81   .75  2.86  2.14  3.20  4.07   4.07
Snowfall (inches)
   Monthly mean            2.03   .42   .23   .00   .00   .00   .00   .00   .00   .00   .01  1.62   4.62
Average number of days
   Temperature
      Maximum 90 or more     .0    .0    .0    .2   2.8   8.5  17.3  16.9   8.2    .6    .0    .0   54.1
      Maximum 32 or less     .2    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .6     .8
      Minimum 32 or less   15.2  11.2   9.6   5.3    .7    .0    .0    .0    .2   2.9   6.0  12.9   63.9
      Minimum 0 or less      .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .0    .1     .1
   Precipitation
      .01 inches or more   15.2  13.6  15.7  10.7   7.4   4.0   1.5   3.0   4.7   9.3  16.4  16.5  118.2
      .10 inches or more    8.7   8.0   8.1   4.9   3.3   1.9    .7   1.5   2.2   5.3   9.7   9.8   64.3
      .50 inches or more    3.8   2.7   2.2    .8    .4    .2    .1    .1    .4   1.7   3.7   4.0   20.1
      1.00 inches or more   1.5    .8    .5    .1    .2    .0    .0    .0    .1    .4   1.2   1.2    6.1
Degree Days
   Heating days @ 65F       770   575   519   370   209    62    10    11    72   297   574   778   4259
   Growing days @ 50F         3    13    43   124   289   490   670   659   448   190    21     4   2943

                                                                         Oregon Climate Service