EUREKA WSO CITY, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042910) EUREKA WSO CITY
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	527	450	488	436	365	281	246	217	236	321	407	514	4487
60	372	310	333	286	212	134	96	74	97	172	259	359	2704
57	282	228	242	198	125	57	29	20	37	95	175	269	1758
55	225	176	183	142	75	23	7	5	14	53	125	212	1241
50	102	70	64	35	6	0	0	0	0	5	37	89	409

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