GRUNDY, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1942 To Year=2012
Station:(443640) GRUNDY
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 4 27 110 272 479 607 591 393 126 26 3 2640
57 1 2 17 83 220 420 545 529 336 94 16 2 2263
60 0 1 7 49 152 332 452 436 254 55 7 1 1744
65 0 0 1 14 65 193 298 282 134 17 1 0 1005
70 0 0 0 1 15 80 154 139 51 3 0 0 443
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