THE DALLES 2, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358410) THE DALLES 2
From Year=1967 To Year=1975
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	960	686	568	420	180	65	15	12	100	393	642	872	4914
60	805	544	413	275	84	13	2	1	35	246	492	717	3628
57	712	459	322	194	46	3	0	0	17	167	402	624	2946
55	650	403	262	144	28	1	0	0	10	122	343	562	2523
50	496	266	131	46	4	0	0	0	2	41	197	408	1590

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