BUMPING LAKE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(450969) BUMPING LAKE
From Year=1931 To Year=1967
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1290	1071	1059	806	609	416	230	234	393	674	966	1176	8923
60	1135	930	904	656	456	274	117	117	253	519	816	1021	7197
57	1042	845	811	566	367	196	69	68	181	427	726	928	6225
55	980	789	749	507	309	151	45	45	139	367	666	866	5610
50	825	647	594	358	178	62	11	11	60	227	516	711	4198

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