LA MESA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(044735) LA MESA
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	291	226	219	141	77	21	0	0	3	30	138	265	1412
60	154	106	93	46	13	1	0	0	0	4	44	130	591
57	89	53	42	16	2	0	0	0	0	1	16	69	290
55	56	30	20	7	1	0	0	0	0	1	7	41	162
50	13	5	1	0	0	0	0	0	0	0	1	8	28

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