RAINIER CARBON RIVER, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456892) RAINIER CARBON RIVER EN
From Year=1906 To Year=1974
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	962	814	814	642	452	300	184	194	327	575	759	899	6921
60	807	673	659	492	302	168	72	77	186	420	609	744	5210
57	714	589	566	402	218	102	30	31	114	328	519	651	4264
55	652	532	504	343	168	67	14	14	74	268	459	589	3683
50	497	391	350	205	68	15	0	1	18	134	310	434	2423

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