BERKELEY, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040693) BERKELEY
From Year=1893 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	6	20	41	63	113	189	218	225	247	189	64	10	1384
57	2	9	23	38	70	133	157	164	188	135	37	4	960
60	0	3	9	17	32	68	77	82	108	72	14	1	484
65	0	0	2	5	9	19	15	14	35	21	2	0	122
70	0	0	0	1	3	6	3	2	11	4	0	0	30

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