SMITHVILLE, TENNESSEE

Period of Record General Climate Summary - Heating Degree Days

From Year=1971 To Year=2012
Station:(408405) SMITHVILLE
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
65 914 743 536 283 96 9 0 2 46 268 528 813 4239
60 760 603 392 175 41 1 0 0 16 157 387 659 3192
57 668 521 314 125 22 0 0 0 7 106 309 569 2642
55 608 467 266 97 13 0 0 0 4 79 261 510 2305
50 464 340 164 45 3 0 0 0 0 32 159 371 1577
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