QUINCY, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047195) QUINCY
From Year=1895 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	949	745	684	512	313	131	41	67	185	420	694	913	5654
60	794	604	529	363	181	51	7	14	83	271	544	758	4199
57	701	519	436	276	117	25	2	4	44	190	454	665	3433
55	639	463	375	223	84	14	1	2	27	142	395	603	2965
50	484	323	228	112	29	2	0	0	6	56	251	448	1938

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