BREMERTON, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(450872) BREMERTON
From Year=1899 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	783	641	607	462	307	169	74	65	158	392	613	763	5034
60	628	502	455	317	171	62	13	8	55	241	463	610	3524
57	535	419	364	233	103	22	2	1	21	158	373	518	2749
55	473	363	304	181	66	9	1	0	9	111	314	456	2286
50	319	226	163	70	12	0	0	0	1	30	175	304	1300

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