VALLEY FALLS, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358812) VALLEY FALLS
From Year=1910 To Year=2003
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1063	862	792	595	414	213	56	74	252	525	807	1025	6676
60	908	721	637	446	272	108	15	23	138	374	657	870	5168
57	815	636	544	359	197	63	5	10	88	288	567	777	4349
55	753	580	483	304	153	40	3	5	62	236	507	715	3840
50	598	439	333	181	70	10	0	1	22	126	363	561	2704

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