CUSHMAN POWERHOUSE 2, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451939) CUSHMAN POWERHOUSE 2
From Year=1973 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	768	656	606	463	303	164	68	59	160	411	633	782	5074
60	613	515	451	315	165	57	10	7	54	258	483	627	3555
57	520	430	359	231	97	20	1	1	20	172	393	534	2778
55	458	374	297	178	60	8	0	0	8	123	334	472	2312
50	304	235	151	69	10	0	0	0	0	35	192	318	1315

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