BONNY DAM 2NE, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(050834) BONNY LAKE
From Year=1949 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	1150	935	819	494	225	42	4	9	114	401	780	1082	6055
60	995	794	665	354	127	15	1	2	57	269	630	927	4834
57	902	709	574	278	83	7	0	1	35	202	541	834	4165
55	840	653	515	232	60	4	0	0	25	163	482	772	3746
50	685	514	376	137	24	1	0	0	9	89	343	618	2795

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