SELMER, TENNESSEE

Period of Record General Climate Summary - Heating Degree Days

From Year=1923 To Year=2012
Station:(408160) SELMER
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
65 852 668 464 200 58 4 0 1 28 201 453 751 3681
60 699 531 331 115 21 0 0 0 8 111 321 599 2738
57 610 451 261 77 9 0 0 0 3 71 251 511 2245
55 552 400 220 56 5 0 0 0 2 50 209 454 1947
50 412 283 131 23 0 0 0 0 0 17 121 321 1310
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