CUSHMAN POWERHOUSE 2, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451939) CUSHMAN POWERHOUSE 2
From Year=1973 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	775	661	622	481	317	174	71	64	166	421	639	791	5181
60	620	519	467	332	177	64	11	8	57	268	489	636	3648
57	527	435	374	247	107	24	2	1	21	181	399	543	2861
55	465	378	313	194	69	10	0	0	9	130	339	481	2388
50	311	239	166	80	13	0	0	0	0	38	198	327	1373

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