SAN GREGORIO 2 SE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047807) SAN GREGORIO 2 SE
From Year=1954 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	10	12	12	19	40	89	146	165	154	89	29	10	773
57	4	5	4	9	19	50	91	108	100	54	14	4	463
60	1	1	1	4	5	17	33	41	43	23	4	1	174
65	0	0	0	1	1	3	3	3	8	6	0	0	26
70	0	0	0	0	0	1	0	0	1	1	0	0	4

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