MITCHELL CAVERNS, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045721) MITCHELL CAVERNS
From Year=1958 To Year=2011
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	580	478	404	230	69	7	0	0	9	103	347	574	2801
60	426	341	265	131	29	2	0	0	2	49	220	420	1885
57	337	264	194	87	16	1	0	0	1	29	157	331	1415
55	281	216	152	64	9	0	0	0	0	19	121	275	1139
50	161	116	70	26	2	0	0	0	0	6	55	157	592

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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