STEHEKIN 3 NW, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(458059) STEHEKIN 3 NW
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 1134 928 822 530 303 131 40 50 210 558 868 1085 6660
60 979 787 667 382 169 47 7 11 101 404 718 930 5201
57 886 702 574 294 103 19 1 3 55 315 628 837 4418
55 824 645 512 239 70 9 0 1 33 258 568 775 3935
50 669 504 358 118 18 1 0 0 7 134 419 620 2848
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