ELECTRON HEADWORKS, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452493) ELECTRON HEADWORKS
From Year=1943 To Year=1980
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 969 781 797 628 448 290 171 190 312 560 772 901 6818
60 814 640 642 478 298 158 62 73 174 406 622 746 5113
57 721 555 549 389 214 94 23 28 105 314 532 653 4178
55 659 499 487 330 163 60 10 12 68 256 472 591 3606
50 505 358 333 191 65 10 1 1 16 128 323 436 2367
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