ANNISTON FAA AIRPORT, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1903 To Year=2012
Station:(010272) ANNISTON FAA AIRPORT
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
65 675 526 351 141 29 1 0 0 10 136 384 616 2867
60 525 393 227 68 7 0 0 0 2 62 255 468 2006
57 439 318 165 40 2 0 0 0 1 34 190 384 1572
55 384 271 130 26 0 0 0 0 0 21 152 331 1315
50 258 169 62 7 0 0 0 0 0 5 77 210 787
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