SUMTER, SOUTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1901 To Year=2012
Station:(388440) SUMTER
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 234 260 483 704 965 1133 1259 1220 1029 742 448 252 8729
40 S 234 494 977 1682 2647 3779 5038 6259 7288 8029 8477 8729 8729
45 M 141 161 342 555 810 983 1104 1065 879 587 311 150 7087
45 S 141 302 644 1199 2009 2991 4095 5161 6040 6626 6937 7087 7087
50 M 77 88 219 409 655 833 949 910 729 435 193 78 5575
50 S 77 165 384 793 1448 2281 3230 4140 4869 5303 5497 5575 5575
55 M 36 41 124 272 500 683 794 755 579 292 104 36 4215
55 S 36 77 200 472 973 1656 2450 3205 3784 4075 4179 4215 4215
60 M 13 15 58 156 349 533 639 600 430 169 46 13 3022
60 S 13 28 87 243 592 1125 1764 2365 2794 2963 3009 3022 3022
Corn Growing Degree Days
50 M 149 170 308 452 639 768 859 837 697 481 290 161 5811
50 S 149 318 626 1078 1717 2485 3344 4181 4878 5359 5649 5811 5811
Derived form the 1901-2012 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