PALMER 3 SE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456295) PALMER 3 SE
From Year=1931 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	867	713	695	532	374	230	114	107	208	438	667	833	5778
60	712	571	540	384	234	112	33	28	96	289	518	678	4194
57	619	487	447	299	159	59	10	7	48	206	428	585	3354
55	557	430	386	244	116	33	3	2	27	156	369	523	2846
50	402	292	238	123	36	4	0	0	3	59	226	368	1753

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