GATEWAY, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(053246) GATEWAY 1 SE
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	1084	789	608	358	137	19	0	1	51	328	688	1027	5089
60	929	647	455	225	62	5	0	0	18	193	538	872	3943
57	836	563	365	159	34	2	0	0	9	128	448	779	3323
55	774	506	308	121	21	1	0	0	6	93	390	717	2937
50	619	367	181	53	5	0	0	0	1	36	252	562	2077

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