WILSON CREEK, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(459327) WILSON CREEK
From Year=1948 To Year=1980
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1221	873	747	483	247	80	19	29	148	492	837	1100	6274
60	1066	732	592	337	130	25	3	5	65	341	687	945	4927
57	973	647	499	253	79	9	1	1	34	256	597	852	4199
55	911	590	437	201	53	4	0	0	21	203	537	790	3747
50	756	450	287	93	14	0	0	0	4	98	388	635	2723

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