BIG BEAR LAKE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040741) BIG BEAR LAKE
From Year=1960 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	970	850	854	671	453	216	70	86	238	508	760	964	6641
60	815	709	699	521	301	101	15	19	112	353	610	809	5065
57	722	624	606	431	216	55	4	5	60	263	520	716	4225
55	660	568	544	372	166	35	2	2	36	207	461	654	3705
50	505	426	390	231	74	10	0	0	8	93	312	499	2547

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