DOYLE 4 SSE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042506) DOYLE 4 SSE
From Year=1956 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	999	776	704	540	323	122	21	32	146	430	755	998	5847
60	844	635	549	392	195	50	4	7	64	285	605	843	4474
57	751	550	457	307	131	26	1	3	36	208	515	750	3735
55	689	494	396	253	96	15	0	1	24	163	455	688	3276
50	535	354	253	140	38	4	0	0	6	76	311	534	2251

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