OJAI, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(046399) OJAI
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	414	320	298	191	111	37	2	1	12	76	235	398	2093
60	263	188	160	82	29	5	0	0	1	18	113	247	1106
57	182	119	93	39	9	1	0	0	0	5	61	165	673
55	134	81	58	22	3	0	0	0	0	2	37	118	455
50	47	20	11	3	0	0	0	0	0	0	6	38	126

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