COTTONWOOD 2 WSW, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(102159) COTTONWOOD 2 WSW
From Year=1950 To Year=2011
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1098	907	823	613	426	220	67	60	213	537	883	1114	6960
60	943	766	668	465	288	116	23	20	119	389	733	959	5489
57	850	681	575	380	214	70	10	9	77	305	643	866	4679
55	788	624	513	325	169	47	5	5	55	253	583	804	4171
50	633	483	362	201	79	13	0	1	19	142	436	649	3018

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