PISMO BEACH, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(046943) PISMO BEACH
From Year=1949 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	376	299	306	250	219	151	126	103	99	140	230	352	2651
60	226	165	164	121	86	38	20	13	17	41	104	204	1200
57	145	95	93	60	31	8	3	1	2	13	50	126	628
55	100	57	57	31	11	2	1	0	0	5	26	82	373
50	27	9	9	3	0	0	0	0	0	0	2	19	70

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