GRUNDY, VIRGINIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1942 To Year=2012
Station:(443640) GRUNDY
Averages Daily Extremes
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 947 770 592 320 120 14 1 2 43 286 548 854 4497
60 792 629 443 205 52 3 0 0 13 169 404 700 3410
57 700 546 359 149 27 1 0 0 6 115 323 608 2833
55 639 491 308 116 17 0 0 0 3 85 273 548 2480
50 491 360 195 56 4 0 0 0 0 34 165 404 1709
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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