LEWISBURG EXP STN, TENNESSEE

Period of Record General Climate Summary - Growing Degree Days

From Year=1890 To Year=2012
Station:(405187) LEWISBURG EXP STN
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 119 135 316 541 822 1039 1177 1152 933 606 289 134 7263
40 S 119 254 570 1111 1933 2972 4149 5301 6234 6840 7128 7263 7263
45 M 63 73 205 399 667 889 1022 997 783 455 183 72 5808
45 S 63 137 341 740 1407 2296 3319 4315 5098 5553 5736 5808 5808
50 M 29 34 119 270 513 739 867 842 633 316 103 33 4499
50 S 29 63 182 452 965 1705 2572 3414 4047 4363 4466 4499 4499
55 M 11 12 60 163 365 589 712 687 485 197 48 12 3343
55 S 11 24 84 247 613 1202 1914 2601 3086 3283 3331 3343 3343
60 M 3 3 25 83 231 440 557 532 343 104 17 3 2341
60 S 3 6 31 113 345 785 1342 1874 2217 2321 2338 2341 2341
Corn Growing Degree Days
50 M 71 87 201 343 535 700 799 775 618 402 187 79 4796
50 S 71 158 359 701 1237 1936 2735 3510 4128 4530 4717 4796 4796
Derived form the 1890-2012 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