VOLTA POWER HOUSE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049390) VOLTA POWER HOUSE
From Year=1948 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	684	515	512	316	151	40	2	5	23	160	417	628	3453
60	529	374	361	194	75	11	0	1	6	74	275	474	2375
57	436	292	276	135	43	5	0	0	3	41	199	383	1813
55	376	240	223	103	28	3	0	0	2	27	154	323	1478
50	234	125	111	45	7	0	0	0	0	8	67	189	786

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 Apr 5, 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