VALLECITO DAM, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(058582) VALLECITO DAM
From Year=1917 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	1344	1130	1017	727	497	222	60	97	281	597	930	1231	8132
60	1189	989	862	577	344	104	8	19	145	442	780	1076	6535
57	1096	904	769	487	256	57	2	5	84	350	690	983	5681
55	1034	848	707	427	201	35	0	2	55	291	630	921	5149
50	879	706	552	281	92	7	0	0	15	159	480	766	3937

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