GREENWOOD FAA AIRPORT, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1948 To Year=2012
Station:(223627) GREENWOOD FAA 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 205 258 488 725 1004 1181 1298 1274 1052 757 432 248 8921
40 S 205 462 950 1675 2679 3860 5159 6433 7485 8242 8674 8921 8921
45 M 124 161 347 575 849 1031 1143 1119 902 602 301 152 7308
45 S 124 285 633 1208 2057 3088 4231 5351 6253 6855 7156 7308 7308
50 M 70 91 226 429 694 881 988 964 752 451 192 86 5825
50 S 70 161 387 816 1510 2391 3380 4344 5096 5547 5739 5825 5825
55 M 35 46 131 292 539 731 833 809 602 309 109 44 4481
55 S 35 80 211 504 1043 1774 2607 3417 4019 4328 4437 4481 4481
60 M 14 18 65 176 386 581 678 654 454 188 52 18 3285
60 S 14 32 96 273 659 1240 1918 2573 3026 3215 3267 3285 3285
Corn Growing Degree Days
50 M 118 149 290 460 677 812 891 870 712 491 264 141 5875
50 S 118 267 556 1016 1694 2505 3396 4266 4978 5469 5733 5875 5875
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