IRVINGTON, KENTUCKY

Period of Record General Climate Summary - Growing Degree Days

From Year=1897 To Year=1973
Station:(154165) IRVINGTON
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 84 87 258 499 796 1017 1155 1115 906 586 244 96 6845
40 S 84 172 430 929 1725 2743 3897 5012 5919 6505 6749 6845 6845
45 M 41 42 162 360 642 867 1000 960 757 437 148 47 5463
45 S 41 83 245 606 1247 2115 3114 4074 4831 5268 5416 5463 5463
50 M 17 18 92 239 489 717 845 805 607 301 79 20 4228
50 S 17 35 126 365 854 1571 2416 3221 3828 4129 4208 4228 4228
55 M 6 6 45 142 343 568 690 650 460 185 36 6 3136
55 S 6 11 56 198 542 1109 1799 2449 2909 3094 3130 3136 3136
60 M 1 1 17 72 214 419 535 495 320 96 13 1 2185
60 S 1 2 20 92 306 725 1259 1755 2075 2171 2184 2185 2185
Corn Growing Degree Days
50 M 44 50 154 303 510 690 791 760 600 363 138 47 4451
50 S 44 94 247 550 1060 1751 2542 3302 3903 4266 4404 4451 4451
Derived form the 1897-1973 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