HEADQUARTERS, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(104150) HEADQUARTERS
From Year=1959 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	1172	999	951	720	503	269	118	131	351	668	934	1175	7990
60	1017	858	796	571	354	150	46	54	220	513	784	1020	6382
57	924	773	703	482	271	95	21	28	155	421	694	927	5494
55	862	716	641	423	220	66	12	17	118	360	634	865	4935
50	707	575	486	283	114	20	2	3	50	220	484	710	3653

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