MONROE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455525) MONROE
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	804	645	615	452	296	151	66	58	164	404	628	785	5068
60	649	504	460	304	157	47	9	7	58	252	478	630	3555
57	556	420	367	218	89	15	1	1	23	169	388	537	2785
55	494	363	306	165	54	6	0	0	11	122	329	475	2325
50	340	227	162	58	8	0	0	0	1	39	191	322	1348

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