BEN LOMOND #4, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040674) BEN LOMOND
From Year=1937 To Year=1965
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	2	5	11	53	112	207	313	306	283	152	28	4	1476
57	1	1	4	32	71	152	252	244	224	106	15	1	1104
60	0	0	1	14	31	83	161	154	142	55	6	0	646
65	0	0	0	2	6	21	48	41	48	15	1	0	182
70	0	0	0	0	1	4	10	6	14	3	0	0	38

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