DOWNIEVILLE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042500) DOWNIEVILLE
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	860	683	632	458	284	109	18	28	102	319	627	837	4956
60	705	541	477	311	161	44	3	6	38	184	477	682	3627
57	612	457	385	231	104	23	0	2	18	118	387	589	2925
55	550	400	325	183	74	14	0	1	11	84	328	527	2496
50	395	262	187	89	28	3	0	0	2	29	191	372	1558

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