ROCKY KNOB, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1940 To Year=1975
Station:(447330) ROCKY KNOB
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 2 1 20 80 213 371 468 432 285 76 16 1 1965
57 1 0 13 57 167 313 406 371 233 50 8 1 1620
60 0 0 5 32 107 230 314 280 162 22 3 0 1155
65 0 0 0 7 35 110 167 142 72 3 0 0 536
70 0 0 0 0 5 30 53 45 19 0 0 0 152
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