PILOT ROCK 1 SE, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(356634) PILOT ROCK
From Year=1908 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	973	777	646	451	261	99	18	23	135	412	709	935	5438
60	818	636	491	308	142	34	3	4	58	267	560	780	4101
57	725	551	399	229	87	14	1	1	30	190	471	687	3386
55	663	495	340	181	58	7	0	0	18	145	412	626	2946
50	512	358	201	82	15	1	0	0	4	61	274	475	1983

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