POTTER VALLEY P H, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047109) POTTER VALLEY P H
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	1	7	25	73	199	360	571	525	403	183	20	1	2367
57	0	2	14	47	153	303	509	463	344	136	11	0	1982
60	0	0	4	22	97	222	417	371	259	80	3	0	1475
65	0	0	0	3	36	112	267	221	135	26	0	0	800
70	0	0	0	0	8	42	135	98	49	5	0	0	337

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