CLE ELUM, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451504) CLE ELUM
From Year=1931 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1159 920 808 583 373 186 62 73 234 557 865 1092 6912
60 1004 779 653 434 232 84 16 20 120 403 715 937 5397
57 911 694 560 346 158 43 5 6 71 314 625 844 4578
55 849 637 498 289 116 24 2 2 47 258 565 782 4070
50 694 496 345 158 41 3 0 0 12 135 416 627 2927
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 Jul 28, 2006
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