EVERETT JR COLLEGE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452675) EVERETT JR COLLEGE
From Year=1948 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
65 799 654 626 473 319 170 86 82 198 426 624 771 5225
60 644 513 471 324 176 58 14 13 78 273 474 616 3653
57 551 428 378 237 104 20 2 2 34 187 384 523 2850
55 489 372 316 183 66 8 1 0 16 136 325 461 2373
50 335 234 171 69 11 0 0 0 2 45 187 308 1363
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