LAKE WENATCHEE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(454446) LAKE WENATCHEE
From Year=1894 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1350 1017 1015 631 411 236 107 87 359 593 997 1172 7973
60 1195 876 860 483 273 122 36 30 224 442 847 1017 6405
57 1102 791 767 397 199 72 15 10 155 355 757 924 5543
55 1040 735 705 341 156 47 7 4 113 297 697 862 5002
50 885 593 550 211 72 11 1 0 33 167 547 707 3777
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu