OROFINO, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(106681) OROFINO
From Year=1903 To Year=1981
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1075	806	679	416	219	69	8	15	123	429	769	995	5602
60	920	665	524	273	109	19	1	3	50	280	619	840	4302
57	827	580	431	196	62	7	0	1	25	199	529	747	3604
55	765	523	370	150	39	3	0	0	14	152	469	685	3170
50	610	382	225	59	8	0	0	0	3	64	320	530	2200

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