MONTEBELLO, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(045790) MONTEBELLO
From Year=1979 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	131	157	210	315	410	518	666	695	623	478	255	144	4602
57	88	115	156	258	348	458	604	633	563	416	199	99	3936
60	43	65	89	178	256	368	511	540	473	324	122	48	3017
65	10	20	23	75	120	221	356	385	323	176	39	9	1756
70	0	4	5	22	37	93	201	230	181	67	9	1	849

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