O O RCH, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(356302) O O RANCH
From Year=1941 To Year=2011
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1102	880	789	605	400	197	41	67	256	553	852	1099	6842
60	947	739	634	456	260	95	9	20	135	399	702	944	5341
57	854	654	541	368	187	54	3	9	82	310	612	851	4525
55	792	597	480	312	144	35	1	4	56	255	552	789	4017
50	638	456	328	184	62	10	0	0	19	134	403	634	2867

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