BROOKS FARNHAM RANCH, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(041112) BROOKS FARNHAM RANCH
From Year=1948 To Year=1985
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	628	456	408	259	90	20	1	2	11	127	381	597	2981
60	473	315	258	138	33	4	0	0	2	47	238	443	1951
57	381	233	176	82	15	1	0	0	1	20	161	352	1422
55	320	181	129	54	7	0	0	0	0	10	116	292	1111
50	179	73	45	14	1	0	0	0	0	1	39	155	507

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 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