ELLENSBURG, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452505) ELLENSBURG
From Year=1893 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 1194 928 757 520 306 134 37 47 204 527 864 1141 6658
60 1039 787 602 372 175 52 9 11 99 374 714 986 5219
57 946 702 509 287 112 24 3 3 55 286 624 893 4444
55 884 645 447 233 77 12 1 1 34 231 564 831 3962
50 729 504 297 117 22 1 0 0 8 114 415 676 2882
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