IDAHO CITY, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(104442) IDAHO CITY
From Year=1931 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	1269	1037	934	650	418	212	51	70	265	575	932	1215	7628
60	1114	896	779	501	275	107	14	23	148	421	782	1060	6119
57	1021	811	686	412	200	62	6	11	96	332	692	967	5294
55	959	755	624	354	156	41	3	6	69	275	632	905	4777
50	804	614	470	218	70	10	0	1	26	154	482	750	3598

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