FRESNO YOSEMITE INTL AP, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(043257) FRESNO WSO AP
From Year=1948 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	4	20	78	204	432	633	837	782	607	327	57	4	3985
57	2	9	50	158	372	573	775	720	547	269	34	2	3512
60	0	2	22	100	286	483	682	627	457	190	13	0	2863
65	0	0	3	37	162	337	527	472	310	85	1	0	1934
70	0	0	0	9	75	204	372	319	176	28	0	0	1183

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