BALCH POWER HOUSE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040449) BALCH POWER HOUSE
From Year=1950 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	620	455	379	257	91	18	0	0	8	84	387	617	2914
60	465	315	235	143	37	4	0	0	1	32	246	462	1940
57	372	235	160	92	19	2	0	0	0	15	170	369	1436
55	311	186	118	65	11	1	0	0	0	9	126	308	1135
50	168	83	44	21	2	0	0	0	0	1	48	166	533

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