BEN LOMOND 4, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040673) BEN LOMOND 4
From Year=1972 To Year=2006
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	7	18	43	91	198	306	396	404	348	206	44	5	2066
57	2	8	24	58	146	247	334	342	289	153	24	1	1626
60	0	2	8	26	83	163	241	249	201	87	8	0	1069
65	0	0	1	6	26	57	101	106	80	25	1	0	402
70	0	0	0	1	6	16	26	23	20	5	0	0	98

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 Jul 28, 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