STERLING, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(057950) STERLING
From Year=1895 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	1239	978	844	514	247	57	6	11	141	459	841	1187	6523
60	1084	837	690	371	142	21	1	2	72	314	691	1032	5257
57	991	752	598	293	96	11	0	1	45	237	601	939	4563
55	929	696	538	245	71	6	0	0	32	192	541	877	4127
50	774	555	394	146	28	1	0	0	13	106	397	722	3136

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