WHISKEYTOWN RESERVOIR, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049621) WHISKEYTOWN RESERVOIR
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	4	13	46	112	320	531	763	737	546	283	37	3	3394
57	2	6	29	82	268	473	701	675	487	233	23	1	2980
60	0	2	13	48	196	387	608	583	400	167	10	0	2413
65	0	0	2	14	101	252	454	429	264	81	2	0	1599
70	0	0	0	2	40	138	304	281	145	30	0	0	940

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