WEAVERVILLE RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049490) WEAVERVILLE RANGER STN
From Year=1894 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	855	658	607	429	239	89	11	18	87	323	618	836	4770
60	700	517	453	287	129	34	2	4	32	189	468	681	3494
57	607	432	361	210	80	16	1	1	15	123	378	588	2813
55	545	375	302	164	55	9	0	1	8	89	319	526	2395
50	391	238	170	77	17	1	0	0	1	33	183	372	1484

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