LYNNVILLE 4 SSW, TENNESSEE

Period of Record General Climate Summary - Growing Degree Days

From Year=1890 To Year=1971
Station:(405535) LYNNVILLE 4 SSW
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 130 143 328 559 832 1039 1164 1142 936 625 291 142 7330
40 S 130 272 600 1159 1991 3030 4194 5336 6272 6897 7188 7330 7330
45 M 69 77 213 415 677 889 1009 987 786 473 181 75 5850
45 S 69 146 358 773 1450 2339 3348 4335 5121 5594 5775 5850 5850
50 M 32 36 123 282 523 739 854 832 636 330 98 35 4520
50 S 32 68 191 473 996 1735 2589 3421 4057 4387 4485 4520 4520
55 M 12 14 62 169 373 589 699 677 487 205 43 13 3343
55 S 12 26 87 257 630 1219 1918 2595 3082 3287 3330 3343 3343
60 M 3 3 25 84 234 439 544 522 342 106 14 3 2320
60 S 3 7 31 115 349 788 1332 1854 2196 2303 2317 2320 2320
Corn Growing Degree Days
50 M 75 87 205 349 541 701 792 775 622 411 186 82 4826
50 S 75 163 368 717 1257 1958 2750 3525 4147 4558 4744 4826 4826
Derived form the 1890-1971 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