CRESCENT CITY, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042147) CRESCENT CITY 1 N
From Year=1893 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	562	477	500	429	357	256	198	186	208	309	434	546	4462
60	407	337	345	281	207	115	64	57	83	163	284	391	2735
57	315	253	254	194	124	49	18	16	32	90	198	299	1842
55	254	199	196	140	77	21	5	5	13	53	144	239	1347
50	120	84	75	39	11	1	0	0	1	8	47	108	494

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