WILLIAMSON, WEST VIRGINIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1900 To Year=1993
Station:(469605) WILLIAMSON
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
65 906 774 579 293 93 9 0 3 36 245 560 847 4347
60 752 633 434 184 39 2 0 1 11 140 417 692 3304
57 661 550 353 132 21 1 0 0 4 93 337 601 2752
55 601 496 303 102 13 0 0 0 2 68 287 541 2413
50 456 366 193 48 3 0 0 0 0 27 177 397 1668
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