SAN JOSE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047821) SAN JOSE
From Year=1948 To Year=2005
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	13	32	71	130	245	359	451	447	402	258	68	15	2491
57	6	16	42	89	188	300	389	385	342	200	39	6	2003
60	1	4	17	46	113	212	296	292	253	121	13	1	1370
65	0	0	2	11	40	92	147	142	115	36	1	0	587
70	0	0	0	2	11	32	45	39	35	7	0	0	172

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 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