RAMONA FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047228) RAMONA FIRE DEPT
From Year=1974 To Year=2008
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	39	41	63	120	239	392	565	597	498	291	115	35	2996
57	23	24	38	82	185	332	503	535	439	233	79	21	2494
60	9	10	16	40	115	245	410	442	350	154	39	8	1838
65	2	2	2	8	35	116	256	288	210	59	9	1	988
70	0	0	1	1	7	40	120	148	100	15	1	0	433

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