NORTH LAKE, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(055990) NORTH LAKE
From Year=1909 To Year=1980
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1230	1071	1056	802	561	299	163	204	376	659	949	1144	8515
60	1075	930	901	652	406	162	46	77	230	504	799	989	6773
57	982	845	808	562	315	96	16	31	154	412	709	896	5826
55	920	789	747	502	256	63	7	15	111	351	649	834	5243
50	765	647	592	355	132	17	1	1	41	211	499	679	3940

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