CEDAR LAKE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451233) CEDAR LAKE
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	927	770	765	601	439	289	165	155	265	489	719	886	6471
60	772	629	610	452	296	162	65	58	142	340	569	731	4826
57	679	544	517	365	216	100	28	23	84	255	479	638	3928
55	617	488	456	308	168	66	13	10	53	202	420	576	3377
50	463	348	305	179	71	13	1	0	10	94	276	421	2181

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