KNOXVILLE WSO AIRPORT, TENNESSEE

Period of Record General Climate Summary - Cooling Degree Days

From Year=1910 To Year=2012
Station:(404950) KNOXVILLE WSO AIRPORT
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 9 12 59 180 387 600 715 690 501 200 40 10 3402
57 6 7 41 141 329 540 653 628 442 156 26 6 2974
60 2 3 22 91 247 450 560 535 355 101 12 2 2380
65 0 0 6 34 130 303 405 380 219 37 2 0 1517
70 0 0 1 6 47 166 252 228 107 8 0 0 814
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 May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster