HARRINGTON 1 N, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(453512) HARRINGTON 1 N
From Year=1948 To Year=1956
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1312	1016	880	613	374	209	65	67	201	536	861	1160	7294
60	1157	875	725	464	231	102	19	17	102	384	711	1005	5792
57	1064	790	632	376	161	55	8	4	62	298	621	912	4982
55	1002	733	570	318	121	33	3	1	43	244	561	850	4478
50	847	592	416	185	49	4	0	0	12	129	411	695	3339

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