JOHN H KERR DAM, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1948 To Year=2012
Station:(444414) JOHN H KERR DAM
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 7 6 42 156 363 586 730 688 464 176 50 11 3280
57 4 3 30 123 307 526 668 626 406 137 35 7 2872
60 2 1 16 82 229 437 575 534 322 88 18 3 2307
65 0 0 5 34 121 293 420 380 194 34 4 0 1486
70 0 0 1 9 47 166 269 232 94 10 1 0 828
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