SAN RAFAEL CIVIC CENTER, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047880) SAN RAFAEL CIVIC CENTER
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	6	21	53	108	201	306	395	396	362	250	67	11	2176
57	2	9	30	72	149	247	333	334	303	191	40	4	1713
60	0	2	10	35	87	164	241	242	215	115	16	1	1126
65	0	0	1	7	30	65	101	102	94	36	2	0	440
70	0	0	0	1	8	22	29	26	31	8	0	0	126

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