DENVER STAPLETON, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(052220) DENVER WSFO AP
From Year=1948 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	1071	891	787	514	255	58	5	9	128	422	777	1035	5952
60	916	749	633	372	145	21	1	2	64	283	627	880	4693
57	823	665	541	293	97	11	0	1	40	212	538	787	4007
55	761	608	482	245	72	7	0	0	29	171	479	726	3579
50	607	470	341	145	30	2	0	0	12	92	343	572	2614

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