BOISE AIR TERMINAL, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(101022) BOISE WSFO AIRPORT
From Year=1940 To Year=2012
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 35 153 335 617 562 281 63 1 0 2050
57 0 0 1 23 118 282 555 501 231 43 1 0 1754
60 0 0 0 11 76 209 463 410 165 22 0 0 1355
65 0 0 0 2 31 112 314 267 81 5 0 0 812
70 0 0 0 0 8 49 181 144 29 1 0 0 413
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