Monthly Means and Extremes
Valley Falls, Oregon Period: 1961-1990
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean Temperature (F)
Maximum 41.5 44.9 52.1 60.6 66.4 77.9 86.4 84.7 74.5 64.6 49.6 41.9 62.5
Minimum 20.5 24.0 27.6 31.8 37.2 43.5 46.8 45.3 38.1 33.4 26.8 21.0 32.7
Mean 31.0 34.4 39.9 46.2 51.7 60.7 66.6 65.0 56.3 49.0 38.1 31.5 47.6
Extreme Temperature (F)
Maximum 63 68 72 85 94 98 102 105 95 87 72 65 105
Minimum -34 -20 8 11 15 24 28 27 16 12 -5 -24 -34
Precipitation (inches)
Monthly mean 1.29 1.65 1.18 .84 1.59 1.19 .36 .41 .77 1.10 1.47 1.90 15.39
Extreme 24 hour 2.10 1.25 1.35 .97 .82 1.10 1.77 1.53 1.44 2.08 1.15 1.62 2.10
Snowfall (inches)
Monthly mean 3.44 2.58 2.63 .90 .45 .11 .00 .00 .00 .18 2.24 5.71 21.30
Average number of days
Temperature
Maximum 90 or more .0 .0 .0 .0 .5 4.0 11.7 8.2 1.7 .0 .0 .0 24.8
Maximum 32 or less 4.7 2.1 .2 .0 .0 .0 .0 .0 .0 .0 1.1 5.2 12.0
Minimum 32 or less 27.0 21.6 22.6 17.2 9.4 2.0 .6 1.0 7.2 13.0 20.3 26.0 169.0
Minimum 0 or less 1.4 .8 .0 .0 .0 .0 .0 .0 .0 .0 .4 1.5 3.0
Precipitation
.01 inches or more 4.1 7.4 7.4 5.6 7.7 5.1 1.4 2.3 2.5 3.7 7.0 8.0 67.4
.10 inches or more 2.4 4.3 3.7 3.0 4.8 3.0 .9 1.1 1.9 2.2 3.9 5.0 39.0
.50 inches or more .9 1.1 .6 .2 .9 .7 .1 .1 .4 .8 1.0 1.0 8.8
1.00 inches or more .3 .1 .1 .0 .0 .2 .1 .1 .1 .2 .2 .4 2.4
Degree Days
Heating days @ 65F 1055 863 780 564 423 176 54 77 269 496 808 1040 6535
Growing days @ 50F 0 3 6 53 135 329 516 466 214 77 2 1 1718
Oregon Climate Service