HOLYOKE, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(054082) HOLYOKE
From Year=1893 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	1163	968	828	506	235	49	5	9	124	426	814	1111	6238
60	1008	826	674	365	132	17	1	2	60	286	664	956	4990
57	915	742	582	287	87	8	0	1	36	214	574	863	4309
55	853	685	522	240	63	5	0	0	25	172	515	801	3882
50	698	545	379	142	25	1	0	0	9	92	373	647	2911

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