WHITEHORSE RCH, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(359290) WHITEHORSE RANCH
From Year=1965 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1075	848	765	588	366	162	33	48	190	488	809	1068	6439
60	920	706	610	440	233	76	9	15	97	340	659	913	5019
57	827	622	517	354	164	42	3	6	60	260	569	820	4244
55	765	565	456	300	126	27	1	3	41	211	510	758	3761
50	611	425	308	179	54	6	0	0	13	111	364	603	2673

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