FREE UNION, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1955 To Year=2012
Station:(443213) FREE UNION
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 1 2 33 136 279 482 496 593 344 136 11 2 2514
57 0 1 22 102 226 422 434 531 286 101 6 1 2131
60 0 0 11 63 154 335 341 438 203 60 1 0 1605
65 0 0 2 22 67 195 190 284 86 25 0 0 871
70 0 0 0 6 20 74 64 140 18 9 0 0 330
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