ALSEA F H FALL CREEK, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(350145) ALSEA FISH HATCHERY
From Year=1954 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	737	653	671	552	406	252	114	111	194	456	617	847	5609
60	582	511	516	404	261	123	31	29	75	302	467	692	3994
57	489	426	423	318	181	66	9	9	31	212	377	599	3139
55	427	369	361	261	134	36	3	3	12	155	318	537	2615
50	273	228	210	133	40	4	0	0	1	53	180	384	1505

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