Monthly Means and Extremes Period: 1971-2000
Roseburg KQEN, OR
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean Temperature(F)
Maximum 50.1 54.9 59.6 64.6 70.9 77.7 85.6 86.3 80.9 69.1 55.7 48.9 67.0
Minimum 34.8 36.5 38.4 40.7 45.5 50.5 54.7 54.7 49.9 43.9 39.6 35.1 43.7
Mean 42.5 45.7 49.0 52.7 58.2 64.1 70.2 70.5 65.4 56.5 47.7 42.0 55.4
Extreme Temperature(F)
Maximum 66 67 76 95 96 101 109 101 105 88 76 66 109
Minimum 29 29 28 32 34 38 47 46 35 32 30 9 9
Precipitation(inches)
Monthly mean 4.97 4.10 3.81 2.75 1.82 .92 .44 .67 1.07 2.27 5.42 5.42 33.66
Extreme 24 hr 1.95 1.78 1.09 2.43 .92 .30 .13 .40 .41 1.28 2.23 1.59 2.43
Snowfall(inches)
Monthly mean .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
Average number of days
Temperature
Maximum 90 or more .0 .0 .0 1.0 .7 4.3 12.0 12.7 8.7 .0 .0 .0 39.3
Maximum 32 or less .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 1.0 1.3
Minimum 32 or less 3.7 3.0 5.0 .3 .0 .0 .0 .0 .0 .7 1.0 7.0 19.0
Minimum 0 or less .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0
Precipitation
.01 inches or more 25.0 24.0 21.7 14.0 17.7 4.3 1.3 2.0 1.7 9.0 20.7 18.0 159.3
.10 inches or more 15.3 15.7 9.0 6.3 9.3 1.3 .7 1.0 1.3 5.0 11.7 8.3 85.3
.50 inches or more 6.0 3.3 1.7 1.0 1.7 .0 .0 .0 .0 2.3 2.7 2.3 21.3
1.00 inches or more 1.0 .7 .3 .7 .0 .0 .0 .0 .0 1.0 1.0 .5 5.3
Degree Days
Heating days @ 65 (F) 636 529 536 360 262 71 15 6 47 270 495 712 3935
Growing days @ 50 (F) 6 8 36 128 228 459 648 657 508 200 51 4 2933