WINCHESTER 1 SE, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(109840) WINCHESTER 1 SE
From Year=1939 To Year=1965
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1200	960	970	678	488	304	97	124	296	584	891	1075	7667
60	1045	818	815	528	340	175	32	44	173	431	741	920	6061
57	952	734	722	439	256	111	14	19	114	342	651	827	5180
55	890	677	660	380	205	76	7	10	82	286	591	765	4629
50	735	536	505	242	101	20	1	1	29	164	441	611	3387

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