QUINCY, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047195) QUINCY
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	935	724	670	516	297	118	36	59	156	393	684	907	5494
60	780	582	515	367	170	46	7	13	66	247	534	752	4078
57	687	497	422	281	109	23	2	4	35	171	444	659	3334
55	625	441	361	227	77	13	1	2	22	128	385	597	2878
50	470	302	218	117	26	3	0	0	5	50	242	443	1875

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