ANTIOCH PUMP PLT 3, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040232) ANTIOCH PUMP PLANT 3
From Year=1955 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	603	406	326	199	77	14	1	1	9	90	340	582	2648
60	448	266	181	90	20	2	0	0	0	24	199	427	1656
57	356	185	108	46	7	0	0	0	0	9	127	335	1172
55	295	135	69	26	3	0	0	0	0	4	89	275	896
50	156	43	14	4	0	0	0	0	0	0	26	139	382

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