ALTENBERN, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(050214) ALTENBERN
From Year=1947 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1289	995	829	567	312	89	6	21	182	517	890	1235	6934
60	1134	854	674	418	175	29	1	3	79	364	740	1080	5550
57	1041	769	581	330	113	13	0	1	44	276	650	987	4804
55	979	713	519	274	81	7	0	0	29	222	590	925	4339
50	824	571	367	153	30	1	0	0	9	112	441	770	3278

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