MANCHESTER 4 W, KENTUCKY

Period of Record General Climate Summary - Growing Degree Days

From Year=1901 To Year=2007
Station:(155111) MANCHESTER 4 W
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 79 95 257 478 751 941 1092 1056 837 516 233 104 6438
40 S 79 173 431 909 1660 2601 3692 4749 5585 6102 6335 6438 6438
45 M 38 46 157 341 596 791 937 901 687 369 138 52 5052
45 S 38 84 241 581 1178 1969 2905 3807 4493 4862 5000 5052 5052
50 M 16 18 83 221 444 641 782 746 537 236 68 22 3815
50 S 16 34 117 338 782 1423 2205 2951 3488 3724 3793 3815 3815
55 M 5 6 38 126 300 491 627 591 390 129 27 7 2736
55 S 5 10 48 174 474 965 1592 2183 2573 2703 2729 2736 2736
60 M 1 1 13 58 174 343 472 437 252 56 7 2 1815
60 S 1 2 15 73 247 590 1062 1499 1751 1807 1814 1815 1815
Corn Growing Degree Days
50 M 55 73 186 326 489 626 742 717 548 351 172 74 4357
50 S 55 128 313 639 1128 1754 2496 3213 3761 4112 4283 4357 4357
Derived form the 1901-2007 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