VALYERMO FIRE STN 2, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049251) VALYERMO RANGER STN
From Year=1915 To Year=1971
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	2	10	78	190	382	616	589	399	149	14	2	2431
57	0	1	4	51	144	325	554	527	341	106	7	1	2062
60	0	0	1	24	87	243	461	435	257	57	2	0	1567
65	0	0	0	4	28	126	307	284	135	15	0	0	900
70	0	0	0	0	6	49	166	148	52	2	0	0	423

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 Oct 31, 2012
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