SAN PEDRO, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047876) SAN PEDRO
From Year=1906 To Year=1964
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	310	261	248	184	115	44	9	4	15	67	147	251	1656
60	169	133	111	60	18	1	0	0	0	6	47	118	664
57	97	69	48	18	3	0	0	0	0	1	15	57	308
55	60	38	22	6	1	0	0	0	0	0	6	30	162
50	11	4	1	0	0	0	0	0	0	0	0	2	19

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