ROANOKE WSO AIRPORT, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1948 To Year=2012
Station:(447285) ROANOKE 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 5 5 36 131 311 524 662 625 394 141 30 6 2869
57 3 3 25 102 258 464 600 563 337 105 19 3 2481
60 1 1 13 65 185 375 507 470 255 63 9 1 1946
65 0 0 4 24 87 234 353 317 138 21 2 0 1180
70 0 0 0 5 27 114 204 173 56 4 0 0 585
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