OROFINO, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(106681) OROFINO
From Year=1903 To Year=1981
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	1	35	151	320	558	510	241	34	0	0	1850
57	0	0	0	22	112	264	496	449	191	19	0	0	1553
60	0	0	0	9	66	186	404	358	127	6	0	0	1156
65	0	0	0	1	21	86	256	215	50	1	0	0	629
70	0	0	0	0	4	30	129	98	13	0	0	0	274

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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