HEADQUARTERS, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(104150) HEADQUARTERS
From Year=1959 To Year=2010
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1181	996	953	723	501	269	113	132	349	674	934	1186	8012
60	1026	855	798	574	353	150	43	54	218	519	784	1031	6405
57	933	770	705	485	270	95	20	27	153	427	694	938	5518
55	871	714	643	426	220	66	11	16	117	367	634	876	4960
50	716	572	488	285	114	21	1	3	48	226	484	721	3680

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