CEDAR LAKE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451233) CEDAR LAKE
From Year=1900 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	928	773	766	600	438	285	156	147	260	485	713	889	6441
60	773	632	611	452	293	159	60	54	138	335	563	734	4804
57	680	547	518	364	214	97	25	21	81	250	473	641	3912
55	618	491	457	307	166	64	12	9	52	197	414	579	3365
50	464	351	306	178	70	13	1	0	10	90	269	425	2177

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