MERCED AP, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(045532) MERCED MUNICIPAL ARPT
From Year=1899 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	3	12	54	159	360	558	745	687	523	270	41	3	3413
57	1	5	31	116	300	498	683	625	463	214	23	1	2959
60	0	1	10	66	217	408	590	532	373	139	7	0	2344
65	0	0	1	19	106	264	435	377	229	51	0	0	1481
70	0	0	0	3	39	141	281	225	109	12	0	0	811

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