MOUNT VERNON, KENTUCKY

Period of Record General Climate Summary - Growing Degree Days

From Year=1956 To Year=2012
Station:(155648) MOUNT VERNON
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 68 86 251 484 744 951 1089 1060 838 517 249 104 6441
40 S 68 154 404 889 1633 2584 3672 4733 5571 6088 6337 6441 6441
45 M 33 44 156 349 590 801 934 905 688 372 154 53 5079
45 S 33 77 233 582 1172 1973 2906 3812 4500 4872 5026 5079 5079
50 M 14 19 88 233 439 651 779 750 539 244 82 23 3860
50 S 14 32 120 353 792 1443 2221 2972 3511 3754 3837 3860 3860
55 M 5 6 44 140 298 501 624 595 393 140 36 8 2790
55 S 5 10 54 194 492 993 1617 2212 2605 2745 2781 2790 2790
60 M 1 1 17 71 177 354 469 441 257 65 11 2 1865
60 S 1 2 19 90 267 621 1089 1530 1787 1852 1863 1865 1865
Corn Growing Degree Days
50 M 37 55 160 308 474 642 751 724 548 327 149 57 4231
50 S 37 92 252 560 1034 1676 2427 3151 3699 4026 4174 4231 4231
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