Monthly Means and Extremes
OO Ranch, Oregon Period: 1961-1990
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean Temperature(F)
Maximum 38.8 44.6 50.6 59.2 69.2 76.8 86.3 84.8 75.8 64.3 49.0 38.5 63.1
Minimum 19.1 23.3 26.5 30.5 36.7 44.0 48.3 46.1 37.6 29.2 25.2 18.2 31.1
Mean 28.9 33.9 38.6 44.9 52.9 60.3 67.3 65.4 56.6 46.7 37.1 28.3 47.1
Extreme Temperature(F)
Maximum 64 67 78 85 93 100 103 102 94 87 71 61 100
Minimum -36 -18 2 12 20 24 26 27 11 9 -2 -35 -20
Precipitation(inches)
Monthly mean 1.03 .69 .84 .68 1.17 .98 .39 .84 .56 .78 1.09 1.10 10.98
Extreme 24 hr .94 1.00 .73 1.00 2.00 .75 .89 2.02 1.25 1.30 .83 1.90 1.30
Snowfall(inches)
Monthly mean 5.03 2.44 2.27 .45 .11 .00 .00 .00 .00 .35 1.14 5.42 18.99
Average number of days
Temperature
Maximum 90 or more .0 .0 .0 .0 .1 2.4 11.0 9.1 1.0 .0 .0 .0 34.0
Maximum 32 or less 6.7 1.4 .5 .0 .0 .0 .0 .0 .0 .0 1.0 7.9 18.0
Minimum 32 or less 25.8 24.4 24.3 17.4 9.0 1.3 .3 .5 7.4 20.3 22.3 27.3 198.0
Minimum 0 or less 2.3 .3 .0 .0 .0 .0 .0 .0 .0 .0 .2 2.4 8.0
Precipitation
.01 inches or more 6.0 6.4 6.8 5.0 5.7 5.6 2.0 3.9 2.8 4.7 6.7 7.1 68.1
.10 inches or more 3.5 2.4 2.9 2.1 3.0 3.4 1.1 2.4 1.8 2.7 3.8 3.8 35.4
.50 inches or more .4 .1 .2 .1 .6 .3 .2 .4 .2 .4 .5 .4 3.8
1.00 inches or more .0 .1 .0 .0 .1 .0 .0 .1 .1 .0 .0 .1 .3
Degree Days
Heating days @ 65 1118 876 820 603 378 172 39 67 262 567 838 1138 6851
Growing days @ 50 0 0 3 36 146 314 535 479 223 37 2 0 1895
Oregon Climate Service