IMPERIAL, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(044223) IMPERIAL
From Year=1901 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	72	141	294	469	706	921	1136	1122	926	619	250	72	6728
57	43	100	236	409	644	861	1074	1060	866	557	197	43	6090
60	16	52	158	322	551	771	981	967	776	465	128	15	5202
65	2	11	62	188	397	621	826	812	626	314	46	1	3906
70	0	1	16	84	252	471	671	657	476	179	8	0	2816

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