WEAVERVILLE RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049490) WEAVERVILLE RANGER STN
From Year=1948 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	871	671	622	447	238	88	13	18	80	318	611	845	4824
60	716	529	467	304	130	34	3	5	29	187	461	690	3555
57	623	445	376	226	82	16	1	2	14	123	372	597	2875
55	561	388	316	180	57	9	0	1	7	88	313	535	2456
50	406	249	181	88	19	1	0	1	1	32	177	381	1536

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 Apr 5, 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