CLEARLAKE 4 SE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(041806) CLEARLAKE 4 SE
From Year=1954 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	0	1	11	53	189	394	577	541	367	148	11	1	2293
57	0	0	5	33	144	337	515	479	309	106	5	0	1932
60	0	0	1	12	89	253	422	387	226	57	1	0	1449
65	0	0	0	1	30	133	272	236	109	16	0	0	796
70	0	0	0	0	6	52	138	108	35	2	0	0	340

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