COTTAGE GROVE DAM, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(351902) COTTAGE GROVE DAM
From Year=1943 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	793	639	622	487	337	180	64	55	139	381	611	780	5089
60	638	498	467	340	200	75	13	9	51	234	461	625	3611
57	545	413	375	256	129	34	3	1	21	157	372	532	2838
55	483	357	314	203	90	17	1	0	10	112	314	471	2372
50	331	221	174	91	24	1	0	0	1	36	178	319	1376

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