BUTTONWILLOW, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(041244) BUTTONWILLOW
From Year=1940 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	596	393	282	143	33	3	0	0	3	78	353	595	2478
60	442	255	150	59	7	0	0	0	0	24	215	441	1593
57	351	178	89	29	2	0	0	0	0	10	144	349	1151
55	293	133	58	16	1	0	0	0	0	5	105	291	899
50	161	50	14	2	0	0	0	0	0	1	36	158	421

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