MOUNTAIN CITY 2, TENNESSEE

Period of Record General Climate Summary - Growing Degree Days

From Year=1956 To Year=2012
Station:(406292) MOUNTAIN CITY 2
Averages Daily Extremes
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 55 64 181 368 620 807 933 909 706 412 182 72 5308
40 S 55 119 300 668 1288 2095 3028 3937 4643 5055 5236 5308 5308
45 M 21 26 96 242 467 657 778 754 556 274 97 31 4000
45 S 21 47 143 385 852 1509 2288 3042 3598 3872 3969 4000 4000
50 M 6 8 42 139 322 507 623 599 408 157 42 10 2864
50 S 6 14 56 196 518 1025 1648 2247 2655 2812 2854 2864 2864
55 M 1 1 14 65 192 360 468 445 267 72 14 2 1900
55 S 1 2 16 81 273 632 1101 1545 1812 1885 1899 1900 1900
60 M 0 0 2 20 87 218 314 292 144 23 3 0 1104
60 S 0 0 2 23 109 327 641 934 1078 1101 1104 1104 1104
Corn Growing Degree Days
50 M 45 54 137 252 389 522 621 600 449 286 143 56 3554
50 S 45 99 236 488 877 1399 2020 2620 3069 3355 3498 3554 3554
Derived form the 1956-2012 Data
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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