MUSCLE SHOALS FAA ARPT, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1940 To Year=2012
Station:(015749) MUSCLE SHOALS FAA ARPT
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
65 763 590 409 158 37 1 0 0 15 156 422 675 3225
60 611 454 280 81 10 0 0 0 3 75 290 525 2328
57 524 377 214 49 3 0 0 0 1 43 221 438 1870
55 467 329 174 34 1 0 0 0 0 27 180 383 1595
50 334 220 93 11 0 0 0 0 0 7 98 256 1018
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