MARTINSVILLE FILTER PLA, VIRGINIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1930 To Year=2012
Station:(445300) MARTINSVILLE FILTER PLA
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
65 889 747 577 286 102 13 1 2 52 283 556 838 4346
60 734 607 431 174 43 2 0 0 17 164 411 684 3266
57 642 523 348 120 21 1 0 0 8 109 329 592 2694
55 582 468 296 90 12 0 0 0 4 79 278 532 2342
50 436 336 181 35 2 0 0 0 0 28 166 388 1573
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