BLACK CANYON GUNNISON, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(050754) BLACK CANYON GUNNISON
From Year=2004 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	1307	1125	955	716	445	172	27	63	275	652	937	1302	7975
60	1152	983	800	566	297	80	3	13	150	497	787	1147	6475
57	1059	898	707	476	219	46	0	4	94	407	697	1054	5663
55	997	841	645	418	174	31	0	2	68	348	637	992	5153
50	842	700	491	279	91	10	0	0	29	215	488	837	3982

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