BONNY LAKE, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(050834) BONNY LAKE
From Year=1949 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1149	928	835	501	226	44	4	9	116	398	787	1074	6069
60	994	786	680	360	127	16	1	2	58	265	637	919	4846
57	901	702	589	284	83	8	0	1	37	198	547	826	4175
55	839	646	529	238	60	5	0	0	26	160	488	764	3754
50	684	507	388	141	24	1	0	0	10	86	348	610	2800

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 Jul 28, 2006
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