PLYMOUTH EXP STN, NORTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1945 To Year=2012
Station:(316853) PLYMOUTH EXP STN
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 178 197 377 617 876 1063 1205 1170 974 696 412 218 7982
40 S 178 374 751 1369 2245 3307 4513 5683 6657 7352 7764 7982 7982
45 M 100 114 248 469 721 913 1050 1015 824 541 279 127 6401
45 S 100 214 462 931 1652 2565 3615 4630 5454 5995 6275 6401 6401
50 M 49 58 147 328 566 763 895 860 674 391 169 66 4965
50 S 49 107 253 581 1148 1910 2806 3666 4340 4730 4899 4965 4965
55 M 20 24 76 207 413 613 740 705 524 253 88 29 3691
55 S 20 44 120 327 740 1353 2093 2798 3322 3575 3663 3691 3691
60 M 5 8 32 113 269 463 585 550 375 140 37 9 2586
60 S 5 13 45 158 427 890 1475 2025 2400 2540 2577 2586 2586
Corn Growing Degree Days
50 M 111 128 239 394 572 722 832 810 661 442 257 135 5303
50 S 111 238 477 871 1444 2166 2998 3808 4468 4911 5168 5303 5303
Derived form the 1945-2012 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