RICHARDSON GROVE ST PK, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047404) RICHARDSON GROVE ST PK
From Year=1961 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	660	523	484	369	218	83	14	12	45	235	501	667	3811
60	505	381	329	228	102	22	1	1	9	111	351	512	2553
57	412	297	240	154	53	8	0	0	2	57	263	419	1904
55	351	241	185	111	31	3	0	0	1	32	207	357	1520
50	204	117	75	35	4	0	0	0	0	5	89	212	742

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