SAINT MARIES, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(108062) SAINT MARIES
From Year=1948 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	1129	885	800	560	345	160	48	57	219	554	866	1091	6714
60	974	743	645	412	210	69	11	15	113	401	716	936	5246
57	881	659	552	326	142	35	3	5	69	312	626	843	4452
55	819	602	491	271	104	20	1	2	47	256	566	781	3959
50	664	461	338	148	38	3	0	0	13	135	416	626	2842

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