WATSONVILLE WATERWORKS, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049473) WATSONVILLE WATERWORKS
From Year=1948 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	8	22	37	63	106	166	204	222	224	157	54	9	1273
57	3	11	20	39	66	111	144	161	166	110	32	3	865
60	0	3	7	18	29	50	67	80	92	58	13	0	417
65	0	0	1	4	7	12	12	13	28	17	2	0	96
70	0	0	0	1	1	3	2	2	7	4	0	0	21

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