ORICK PRAIRIE CREEK PK, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(046498) ORICK PRAIRIE CREEK PK
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	630	515	538	466	382	273	203	180	200	332	482	629	4829
60	475	374	383	317	231	131	65	48	73	183	332	474	3087
57	382	290	290	230	147	62	18	11	26	107	244	381	2188
55	320	235	230	174	98	32	5	3	10	67	188	320	1681
50	176	112	100	61	21	3	0	0	0	12	74	177	736

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