COEUR D ALENE, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(101956) COEUR D ALENE 1 E
From Year=1895 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1134	919	823	562	326	142	31	35	193	500	834	1056	6555
60	979	778	668	414	193	58	6	8	95	348	684	901	5131
57	886	693	575	328	128	27	1	2	55	262	595	808	4360
55	824	636	513	272	92	14	0	1	36	209	535	746	3879
50	670	495	359	149	31	2	0	0	10	99	386	591	2790

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