KEY WEST WSO AIRPORT, FLORIDA

Period of Record General Climate Summary - Growing Degree Days

From Year=1948 To Year=2012
Station:(084570) KEY WEST WSO AIRPORT
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 918 868 1046 1107 1255 1296 1380 1380 1300 1245 1069 974 13838
40 S 918 1786 2832 3939 5194 6490 7870 9251 10550 11795 12864 13838 13838
45 M 763 727 891 957 1100 1146 1225 1225 1150 1090 919 819 12012
45 S 763 1490 2381 3337 4438 5584 6809 8035 9184 10274 11193 12012 12012
50 M 608 586 736 807 945 996 1070 1070 1000 935 769 664 10186
50 S 608 1193 1930 2736 3681 4678 5748 6818 7818 8753 9522 10186 10186
55 M 454 445 581 657 790 846 915 915 850 780 619 510 8362
55 S 454 899 1480 2137 2927 3773 4688 5604 6453 7233 7852 8362 8362
60 M 305 307 427 507 635 696 760 760 700 625 469 357 6549
60 S 305 612 1039 1546 2181 2877 3637 4398 5097 5722 6191 6549 6549
Corn Growing Degree Days
50 M 609 586 736 806 936 962 1016 1013 963 926 769 664 9985
50 S 609 1195 1931 2736 3672 4635 5651 6664 7627 8552 9321 9985 9985
Derived form the 1948-2012 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