JACKSON WSFO AIRPORT, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1963 To Year=2012
Station:(224472) JACKSON WSFO 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 242 285 534 746 1004 1178 1297 1279 1079 777 474 289 9185
40 S 242 528 1062 1808 2812 3990 5287 6566 7645 8422 8896 9185 9185
45 M 149 183 390 596 849 1028 1142 1124 929 622 337 183 7532
45 S 149 332 722 1318 2167 3195 4337 5461 6390 7012 7350 7532 7532
50 M 84 105 260 448 694 878 987 969 779 469 220 107 6001
50 S 84 190 450 898 1592 2470 3457 4426 5205 5674 5894 6001 6001
55 M 43 54 155 308 539 728 832 814 629 324 127 57 4610
55 S 43 97 252 560 1099 1827 2659 3473 4102 4426 4552 4610 4610
60 M 17 23 78 186 385 578 677 659 480 198 61 26 3369
60 S 17 40 118 304 690 1268 1945 2604 3084 3282 3343 3369 3369
Corn Growing Degree Days
50 M 152 181 335 485 680 805 888 874 735 509 301 182 6125
50 S 152 333 667 1152 1832 2637 3525 4399 5134 5643 5944 6125 6125
Derived form the 1963-2012 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