OROVILLE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456187) OROVILLE 1 S
From Year=1960 To Year=1970
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1175	859	754	459	240	49	10	23	142	475	802	1088	6075
60	1020	718	599	310	123	11	1	4	55	323	652	933	4749
57	927	633	506	225	71	4	0	1	25	238	562	840	4031
55	865	577	445	173	46	1	0	0	13	188	502	778	3588
50	710	436	295	68	10	0	0	0	2	87	353	623	2584

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