WINCHESTER, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(359461) WINCHESTER
From Year=1950 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	708	588	541	416	259	112	14	13	75	325	558	740	4348
60	553	446	386	271	134	35	1	1	18	184	409	585	3022
57	460	362	294	190	75	13	0	0	5	114	321	492	2326
55	399	306	235	141	45	5	0	0	2	76	264	430	1904
50	249	173	109	49	7	0	0	0	0	19	135	281	1021

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