BOCA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040931) BOCA
From Year=1948 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	1229	1027	975	747	542	323	156	193	353	616	882	1154	8197
60	1074	885	820	597	388	187	57	80	210	461	732	999	6491
57	981	801	727	507	300	122	25	38	137	369	642	906	5554
55	919	744	665	447	245	87	13	21	97	309	582	844	4973
50	764	603	510	302	131	31	2	3	35	175	432	689	3676

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