WENATCHEE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(459074) WENATCHEE
From Year=1877 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	1134	871	665	382	172	45	7	9	93	413	782	1051	5623
60	979	730	510	240	75	9	1	1	32	267	632	896	4372
57	886	645	417	164	38	2	0	0	14	189	542	803	3701
55	824	589	356	120	22	1	0	0	7	143	483	741	3284
50	669	448	212	40	3	0	0	0	1	55	334	586	2347

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