ELTOPIA 8 WSW, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452542) ELTOPIA 8 WSW
From Year=1974 To Year=2007
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1016 773 611 412 229 78 17 16 114 417 755 1015 5453
60 861 632 456 267 113 21 2 2 41 269 606 860 4129
57 768 547 364 188 62 6 0 0 18 191 516 767 3427
55 706 491 303 141 38 2 0 0 9 145 458 705 2998
50 551 353 165 53 7 0 0 0 1 58 316 552 2057
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