BOISE WSFO AIRPORT, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(101022) BOISE WSFO AIRPORT
From Year=1940 To Year=2006
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	3	34	150	330	603	553	271	62	1	0	2007
57	0	0	1	22	115	277	541	492	222	42	0	0	1713
60	0	0	0	10	73	204	449	401	158	21	0	0	1317
65	0	0	0	2	29	109	301	259	76	5	0	0	780
70	0	0	0	0	8	48	170	137	26	1	0	0	389

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 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