KELSO SOUTHWEST RGNL AP, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(454135) KELSO WB AIRPORT
From Year=1949 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 1 6 51 130 253 266 186 31 2 1 924
57 0 0 0 1 30 86 193 206 137 18 1 0 672
60 0 0 0 0 11 44 112 124 76 6 0 0 372
65 0 0 0 0 1 9 29 36 24 0 0 0 100
70 0 0 0 0 0 1 4 8 2 0 0 0 15
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