WILLITS 1 NE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049684) WILLITS 1 NE
From Year=1960 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	1	4	8	26	90	201	348	326	228	97	9	0	1339
57	0	2	4	14	61	153	287	266	176	64	4	0	1030
60	0	0	1	4	32	95	202	180	108	28	0	0	649
65	0	0	0	0	7	35	88	71	31	4	0	0	236
70	0	0	0	0	0	8	22	18	5	0	0	0	54

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