BELLINGHAM 3 SSW, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(450587) BELLINGHAM 3 SSW
From Year=1985 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 731 637 591 443 307 160 65 59 181 402 595 754 4924
60 576 496 436 293 161 46 6 4 61 249 445 599 3372
57 483 411 343 206 87 12 1 0 22 163 356 506 2591
55 421 355 282 152 51 4 0 0 9 114 297 445 2131
50 273 219 141 48 6 0 0 0 0 32 165 294 1178
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