HOWARD PRAIRIE DAM, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(354060) HOWARD PRAIRIE DAM
From Year=1960 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	1119	931	917	749	541	313	132	138	285	569	894	1109	7696
60	964	790	762	599	392	189	54	54	161	416	744	954	6078
57	871	705	669	509	308	129	27	27	106	328	654	861	5193
55	809	648	607	450	256	96	16	16	77	273	594	799	4640
50	654	507	452	308	143	38	3	3	30	153	444	644	3377

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