ANTIOCH PUMP PLT 3, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040232) ANTIOCH PUMP PLANT 3
From Year=1955 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	2	12	53	143	314	484	601	571	474	277	50	3	2986
57	1	5	30	103	256	425	539	509	414	220	29	1	2531
60	0	1	10	57	177	336	446	416	325	142	10	0	1920
65	0	0	0	16	79	199	292	262	183	53	1	0	1085
70	0	0	0	3	28	95	151	122	76	14	0	0	489

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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