AVALON PLEASURE PIER, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040395) AVALON PLEASURE PIER
From Year=1909 To Year=1988
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	324	273	262	201	146	78	24	12	26	75	172	284	1877
60	177	140	121	74	33	6	1	0	0	9	57	140	760
57	100	73	55	25	6	1	0	0	0	1	19	70	351
55	60	40	25	9	1	0	0	0	0	0	7	37	179
50	9	4	1	0	0	0	0	0	0	0	0	3	18

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