COLFAX, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(041912) COLFAX
From Year=1948 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	3	9	24	87	226	441	670	626	466	228	33	4	2816
57	1	4	14	62	181	384	608	564	408	180	20	2	2427
60	0	1	6	33	123	302	515	471	323	119	8	0	1901
65	0	0	1	7	53	181	362	320	195	49	1	0	1170
70	0	0	0	1	16	91	221	183	94	15	0	0	620

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