BOCA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040931) BOCA
From Year=1906 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	1228	1030	974	745	540	326	154	195	350	617	882	1144	8188
60	1073	889	819	595	386	190	56	80	207	462	732	989	6478
57	980	804	726	505	297	123	23	38	134	370	642	896	5540
55	918	748	664	445	242	88	12	20	95	310	582	834	4959
50	763	606	509	300	128	31	1	3	33	175	432	679	3661

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