GILLESPIE FLD, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(043410) GILLESPIE FIELD
From Year=1959 To Year=1979
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	41	51	94	161	292	417	594	631	536	366	145	35	3362
57	21	26	57	113	232	357	532	569	476	305	100	16	2804
60	6	8	21	56	147	268	439	476	386	217	48	3	2075
65	1	1	2	9	45	131	284	321	237	92	7	0	1130
70	0	0	0	0	8	41	133	168	106	24	0	0	482

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