PILOT ROCK, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(356634) PILOT ROCK
From Year=1948 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	963	763	659	476	278	112	25	27	141	429	714	934	5522
60	808	622	504	331	156	42	4	5	62	283	564	779	4161
57	715	538	412	249	97	19	1	1	33	205	475	686	3432
55	654	482	352	198	67	10	1	0	20	158	417	625	2981
50	502	345	211	91	18	1	0	0	4	68	278	473	1992

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 Jul 28, 2006
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