SPRAGUE RIVER 2 SE, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358007) SPRAGUE RIVER
From Year=1953 To Year=2001
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1149	922	883	694	492	272	110	138	316	605	885	1131	7599
60	994	781	728	545	343	153	42	53	183	451	735	976	5983
57	901	696	635	455	260	98	21	26	121	360	645	883	5101
55	839	639	573	396	211	69	13	15	88	302	585	821	4552
50	684	498	419	255	108	23	2	3	34	172	436	666	3300

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