REDLANDS, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047306) REDLANDS
From Year=1898 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	38	52	99	180	309	480	694	697	567	348	135	42	3644
57	23	33	68	137	252	420	632	635	507	290	96	24	3118
60	9	15	34	83	173	332	539	542	417	208	52	8	2414
65	1	2	8	29	74	195	385	388	272	100	13	0	1467
70	0	0	1	8	23	88	233	237	148	37	1	0	776

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