HOPKINSVILLE, KENTUCKY

Period of Record General Climate Summary - Growing Degree Days

Station:(153994) HOPKINSVILLE
From Year=1896 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 85 103 286 525 819 1044 1191 1159 932 604 269 103 7122
40 S 85 188 474 999 1818 2863 4053 5213 6145 6749 7018 7122 7122
45 M 43 52 182 385 664 894 1036 1004 782 454 167 51 5715
45 S 43 94 277 662 1326 2220 3256 4260 5043 5496 5664 5715 5715
50 M 19 23 104 260 510 744 881 849 633 315 92 21 4451
50 S 19 41 145 405 915 1660 2541 3390 4022 4337 4430 4451 4451
55 M 6 8 52 157 362 594 726 694 485 196 43 6 3330
55 S 6 14 66 223 585 1179 1905 2599 3084 3280 3323 3330 3330
60 M 2 2 21 81 229 445 571 539 343 105 15 1 2353
60 S 2 3 24 105 334 779 1350 1889 2232 2337 2352 2353 2353
Corn Growing Degree Days
50 M 51 66 181 326 525 699 801 776 611 388 168 59 4651
50 S 51 118 299 625 1150 1849 2649 3426 4036 4424 4592 4651 4651
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Western Regional Climate Center, wrcc@dri.edu