COMMERCE 4 NNW, GEORGIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1957 To Year=2012
Station:(092180) COMMERCE 4 NNW
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
65 752 611 423 190 49 2 0 0 15 177 421 680 3322
60 598 471 286 99 15 0 0 0 3 86 283 527 2369
57 507 390 214 60 5 0 0 0 1 50 211 439 1878
55 448 339 172 41 2 0 0 0 0 33 169 382 1585
50 310 221 89 12 0 0 0 0 0 9 85 249 975
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