ABERDEEN, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(450008) ABERDEEN
From Year=1931 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	753	629	621	492	368	236	153	134	188	381	585	726	5266
60	598	488	466	344	222	102	37	26	70	231	435	571	3591
57	505	403	373	258	142	41	8	4	27	150	345	478	2735
55	443	346	312	203	96	17	2	1	12	104	286	416	2239
50	291	209	168	84	20	1	0	0	1	27	149	263	1214

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