STEVENS PASS, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(458089) STEVENS PASS
From Year=1950 To Year=1994
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1282 1073 1080 889 714 494 302 299 448 731 1067 1243 9622
60 1127 932 925 739 560 351 178 174 305 576 917 1088 7871
57 1034 847 832 649 469 270 119 113 228 484 827 995 6866
55 972 790 770 589 409 221 86 79 182 424 767 933 6223
50 817 649 615 440 269 118 30 24 90 282 617 778 4728
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