CLEMSON COLLEGE, SOUTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1930 To Year=2012
Station:(381770) CLEMSON COLLEGE
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 157 187 383 618 885 1077 1205 1180 974 672 364 176 7877
40 S 157 344 727 1345 2230 3307 4512 5692 6666 7338 7702 7877 7877
45 M 80 100 250 470 730 927 1050 1025 824 517 234 89 6297
45 S 80 180 431 901 1630 2557 3607 4632 5456 5974 6208 6297 6297
50 M 35 45 143 328 575 777 895 870 674 367 131 39 4879
50 S 35 79 223 551 1125 1902 2797 3667 4342 4709 4840 4879 4879
55 M 12 15 68 201 421 627 740 715 524 231 61 14 3629
55 S 12 27 95 296 717 1344 2084 2799 3324 3554 3615 3629 3629
60 M 3 3 25 102 275 477 585 560 377 120 21 3 2550
60 S 3 6 31 133 407 884 1469 2029 2406 2526 2547 2550 2550
Corn Growing Degree Days
50 M 97 123 242 389 579 729 822 809 655 428 232 110 5216
50 S 97 220 462 851 1430 2159 2981 3790 4445 4873 5106 5216 5216
Derived form the 1930-2012 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