ROCKY MOUNT, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1894 To Year=2012
Station:(447338) ROCKY MOUNT
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 4 3 30 111 292 494 626 584 385 129 25 4 2686
57 2 2 21 83 239 435 564 522 328 95 15 2 2308
60 1 0 11 51 169 347 471 430 247 55 7 1 1788
65 0 0 3 17 78 208 317 278 132 17 1 0 1051
70 0 0 0 3 23 96 173 140 52 4 0 0 492
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