VALSETZ, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358833) VALSETZ
From Year=1926 To Year=1986
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	826	658	675	545	391	226	117	110	200	409	626	771	5555
60	671	516	520	396	248	112	36	29	87	259	476	616	3966
57	578	432	427	309	171	61	12	8	44	176	386	523	3127
55	516	375	365	253	127	36	4	3	25	129	327	462	2621
50	362	237	217	128	43	5	0	0	3	42	187	309	1533

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