Monthly Means and Extremes Period: 1971-2000
Alkali Lake, OR
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean Temperature(F)
Maximum 41.9 45.9 51.4 59.0 68.2 77.6 86.9 86.3 77.3 65.1 49.4 41.9 62.6
Minimum 18.7 21.7 23.3 26.6 33.0 40.9 45.5 44.5 35.4 27.5 23.2 18.3 29.9
Mean 30.3 33.8 37.4 42.8 50.6 59.3 66.2 65.4 56.4 46.3 36.3 30.1 46.2
Extreme Temperature(F)
Maximum 63 72 76 88 97 100 103 105 101 90 75 69 105
Minimum -17 -26 -11 8 15 23 30 26 19 3 -10 -33 -29
Precipitation(inches)
Monthly mean .52 .46 .79 .89 1.14 .85 .61 .66 .53 .69 .67 .59 8.40
Extreme 24 hr .85 .61 .90 1.22 1.69 1.13 1.81 2.50 1.45 1.65 .53 1.04 2.50
Snowfall(inches)
Monthly mean 2.54 1.91 1.69 1.39 .68 .10 .00 .00 .00 .26 2.16 3.93 19.85
Average number of days
Temperature
Maximum 90 or more .0 .0 .0 .0 .6 4.3 14.1 12.4 3.5 .1 .0 .0 34.9
Maximum 32 or less 4.6 2.3 .2 .0 .0 .0 .0 .0 .0 .1 .8 4.0 12.3
Minimum 32 or less 26.7 22.7 24.5 20.9 10.8 2.4 .3 .5 6.8 20.2 23.5 26.6 187.4
Minimum 0 or less 2.3 1.1 .3 .0 .0 .0 .0 .0 .0 .0 .5 1.9 6.3
Precipitation
.01 inches or more 4.4 4.7 7.1 6.3 6.7 4.9 2.3 2.7 3.0 4.6 6.7 5.8 64.1
.10 inches or more 1.9 1.7 2.8 2.9 3.3 2.8 1.3 1.6 1.3 2.2 2.4 2.0 26.1
.50 inches or more .1 .1 .2 .3 .4 .2 .5 .4 .3 .3 .1 .1 2.9
1.00 inches or more .0 .0 .0 .0 .1 .0 .2 .1 .0 .1 .0 .0 .6
Degree Days
Heating days @ 65 (F) 1067 866 817 624 409 188 58 67 231 545 847 1078 6833
Growing days @ 50 (F) 0 1 5 35 135 313 531 494 253 63 3 0 1833
Minimum 20.1 22.9 26.6 31.4 38.2 45.4 51 49.4 40.8 32.6 25.7 20.7 33.7
Maximum 41.7 45.4 51.6 58.9 67.9 77.6 86.8 86.3 77.1 65.5 48.6 41.7 62.4
Mean 30.9 34.2 39.1 45.2 53.1 61.5 68.9 67.9 59 49.1 37.2 31.2 48.1