MONTEBELLO, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(045790) MONTEBELLO
From Year=1979 To Year=2011
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	131	157	211	311	410	518	662	695	623	478	255	142	4594
57	88	115	157	253	348	458	600	633	563	416	199	97	3928
60	43	65	90	174	256	368	507	540	473	324	122	48	3010
65	10	20	24	72	120	221	352	385	323	176	39	9	1751
70	0	4	5	21	37	93	198	230	181	67	9	1	845

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