Monthly Means and Extremes
Barnes Station, Oregon Period: 1961-1990
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean Temperature (F)
Maximum 38.4 44.3 49.7 57.3 66.0 74.9 84.1 82.9 74.8 63.7 47.2 39.2 60.2
Minimum 17.8 22.8 25.5 28.1 34.1 41.0 45.3 44.2 36.8 30.1 25.3 18.8 30.9
Mean 28.1 33.6 37.6 42.7 50.1 58.0 64.7 63.6 55.7 46.9 36.2 29.0 45.6
Extreme Temperature (F)
Maximum 59 66 77 86 94 96 100 102 99 90 72 62 102
Minimum -31 -26 -3 6 13 22 27 28 17 3 -17 -30 -31
Precipitation (inches)
Monthly mean 1.22 .88 .97 .79 1.11 1.06 .71 .89 .60 .79 1.62 1.52 12.19
Extreme 24 hour 1.02 1.04 .92 .79 1.10 1.38 1.91 1.24 .65 1.14 .88 1.40 1.91
Snowfall (inches)
Monthly mean 10.18 6.60 4.32 1.19 .62 .05 .00 .00 .15 1.24 7.18 12.43 43.95
Average number of days
Temperature
Maximum 90 or more .0 .0 .0 .0 .2 2.1 9.0 7.8 1.6 .0 .0 .0 21.3
Maximum 32 or less 7.0 1.6 .3 .0 .0 .0 .0 .0 .0 .0 1.2 6.0 16.7
Minimum 32 or less 27.8 24.7 26.0 21.8 13.5 3.3 .7 .9 8.5 19.8 23.1 27.9 196.9
Minimum 0 or less 3.2 .9 .1 .0 .0 .0 .0 .0 .0 .0 .3 2.3 6.9
Precipitation
.01 inches or more 9.3 8.5 10.7 8.9 8.5 7.2 3.5 5.0 4.6 6.5 11.6 10.9 95.8
.10 inches or more 4.1 3.6 3.1 2.4 3.4 3.2 1.8 2.6 1.8 2.7 5.6 4.8 39.5
.50 inches or more .3 .1 .1 .1 .2 .5 .4 .4 .2 .2 .6 .5 3.6
1.00 inches or more .0 .0 .0 .0 .0 .0 .1 .1 .0 .0 .0 .1 .4
Degree Days
Heating days @ 65F 1143 888 849 669 465 231 84 103 286 561 863 1117 7245
Growing days @ 50F 0 0 1 22 98 254 457 422 201 49 2 0 1524
Oregon Climate Service