CUSHMAN DAM, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451934) CUSHMAN DAM
From Year=1931 To Year=1973
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	866	701	692	497	313	177	79	75	165	392	637	797	5391
60	711	560	537	350	181	72	16	14	63	244	487	642	3879
57	618	475	444	266	115	31	3	3	28	166	398	549	3096
55	556	419	383	213	78	14	1	1	13	121	339	487	2625
50	402	279	235	98	20	1	0	0	1	42	198	333	1608

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