GRAND JUNCTION WALKER FLD, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(053488) GRAND JUNCTION WALKER
From Year=1900 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	1202	877	675	387	148	21	0	1	58	341	757	1124	5592
60	1047	736	521	253	73	6	0	0	22	208	607	969	4442
57	954	651	429	184	43	2	0	0	11	143	518	876	3813
55	892	594	370	145	29	1	0	0	7	108	458	814	3418
50	737	454	232	69	8	0	0	0	2	46	314	659	2521

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