QUILLAYUTE WSCMO AP, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456858) QUILLAYUTE WSCMO AP
From Year=1966 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	754	647	658	556	424	289	191	176	253	460	622	755	5785
60	599	506	503	406	273	148	62	52	118	306	472	600	4045
57	506	421	410	317	187	74	16	13	56	217	382	507	3107
55	445	365	348	259	134	37	5	3	28	161	322	445	2552
50	292	226	197	124	35	3	0	0	3	55	182	293	1409

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