THREE CREEK, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(109119) THREE CREEK
From Year=1940 To Year=1987
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1228	985	978	728	515	288	83	121	332	643	919	1147	7966
60	1073	844	823	578	365	161	24	43	202	489	769	992	6364
57	980	759	730	489	280	103	9	20	139	399	679	899	5486
55	918	703	668	430	228	71	4	11	104	341	619	837	4936
50	763	562	514	291	120	23	0	2	44	212	470	682	3682

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