SOUTHPORT 5 N, NORTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1892 To Year=2012
Station:(318113) SOUTHPORT 5 N
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 247 245 446 654 926 1104 1239 1223 1054 793 495 293 8717
40 S 247 492 938 1592 2518 3622 4861 6084 7137 7930 8425 8717 8717
45 M 142 143 304 504 771 954 1084 1068 904 638 353 177 7042
45 S 142 285 590 1094 1865 2819 3902 4970 5874 6512 6865 7042 7042
50 M 69 69 183 358 616 804 929 913 754 485 228 92 5499
50 S 69 138 320 679 1295 2099 3027 3940 4694 5179 5407 5499 5499
55 M 25 25 90 224 462 654 774 758 604 338 127 39 4118
55 S 25 49 139 363 825 1478 2252 3010 3614 3952 4079 4118 4118
60 M 5 5 32 114 310 504 619 603 454 205 57 11 2919
60 S 5 10 42 156 467 970 1589 2192 2646 2851 2909 2919 2919
Corn Growing Degree Days
50 M 128 128 246 394 618 786 896 881 741 510 294 160 5783
50 S 128 256 502 896 1515 2301 3197 4077 4818 5328 5623 5783 5783
Derived form the 1892-2012 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