CASCADIA, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(351433) CASCADIA STATE PARK
From Year=1908 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	836	669	640	490	346	188	77	76	181	421	644	808	5376
60	681	528	485	343	208	81	17	16	77	270	494	653	3852
57	588	443	393	259	137	39	4	4	38	187	404	560	3055
55	526	387	332	206	97	21	1	1	21	139	345	498	2573
50	371	249	190	96	28	2	0	0	3	49	204	344	1536

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