NASELLE 2 ENE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455774) NASELLE
From Year=1929 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	863	684	671	552	454	287	168	89	152	438	731	830	5916
60	708	541	516	402	300	146	44	13	59	283	581	675	4265
57	615	456	423	313	211	74	8	0	22	190	491	582	3381
55	553	399	361	256	154	36	2	0	6	137	431	520	2851
50	399	256	206	124	41	2	0	0	0	47	281	365	1719

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