DRAIN, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(352406) DRAIN 1 NNE
From Year=1902 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	736	578	543	409	276	134	36	38	120	324	546	723	4464
60	581	437	389	265	146	45	4	5	39	182	396	568	3058
57	488	353	299	185	85	17	1	1	14	112	308	475	2338
55	427	297	241	138	53	7	0	0	6	75	251	414	1909
50	277	167	114	48	10	1	0	0	0	19	126	265	1027

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