FAIRFIELD R S, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(103108) FAIRFIELD R S
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	1484	1243	1104	713	446	228	55	83	304	619	1028	1393	8701
60	1329	1101	949	564	299	117	14	28	179	465	878	1238	7162
57	1236	1017	856	475	219	69	6	14	121	374	788	1145	6320
55	1174	960	794	416	172	46	3	9	90	317	728	1083	5793
50	1019	819	639	277	80	12	0	2	39	190	578	928	4583

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