PACIFIC HOUSE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(046597) PACIFIC HOUSE
From Year=1941 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	807	754	795	515	321	139	11	0	12	352	725	834	5263
60	652	611	640	371	194	75	0	0	2	206	575	679	4004
57	559	526	547	290	136	46	0	0	0	135	485	586	3310
55	497	469	485	239	104	32	0	0	0	94	425	524	2867
50	342	326	332	128	47	10	0	0	0	30	276	369	1859

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