ST JOHN BETHLEHEM ACA, KENTUCKY

Period of Record General Climate Summary - Growing Degree Days

From Year=1896 To Year=1959
Station:(157091) ST JOHN BETHLEHEM ACA
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 76 227 457 760 986 1132 1088 880 556 224 80 6533
40 S 68 143 371 828 1587 2574 3706 4793 5673 6229 6453 6533 6533
45 M 32 36 137 323 605 836 977 933 730 409 132 37 5187
45 S 32 67 204 527 1132 1968 2945 3878 4608 5017 5150 5187 5187
50 M 13 14 73 207 453 686 822 778 581 275 68 14 3985
50 S 13 26 100 307 761 1447 2269 3047 3627 3903 3971 3985 3985
55 M 4 4 34 117 310 537 667 623 435 163 29 4 2927
55 S 4 8 42 159 469 1006 1673 2296 2730 2893 2923 2927 2927
60 M 1 1 13 55 186 388 512 468 297 79 9 0 2009
60 S 1 2 14 69 255 643 1155 1623 1920 2000 2008 2009 2009
Corn Growing Degree Days
50 M 43 51 146 280 481 658 763 730 575 357 141 46 4272
50 S 43 94 240 520 1001 1659 2422 3152 3728 4085 4226 4272 4272
Derived form the 1896-1959 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