COMMERCE 4 NNW, GEORGIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1957 To Year=2012
Station:(092180) COMMERCE 4 NNW
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 125 156 369 587 849 1047 1182 1160 943 630 341 158 7549
40 S 125 281 651 1238 2086 3134 4316 5476 6419 7049 7391 7549 7549
45 M 59 82 239 439 694 897 1027 1005 793 477 215 80 6007
45 S 59 141 380 819 1512 2410 3437 4442 5235 5712 5927 6007 6007
50 M 23 35 135 299 539 747 872 850 643 329 117 34 4623
50 S 23 57 192 491 1030 1777 2650 3499 4142 4471 4589 4623 4623
55 M 6 11 63 178 386 597 717 695 493 198 51 12 3407
55 S 6 17 80 257 643 1241 1958 2653 3146 3344 3395 3407 3407
60 M 1 2 22 86 244 448 562 540 346 96 16 3 2365
60 S 1 2 25 110 354 801 1364 1904 2250 2346 2362 2365 2365
Corn Growing Degree Days
50 M 81 106 239 374 553 708 806 793 632 402 222 105 5021
50 S 81 187 426 800 1353 2061 2867 3661 4292 4694 4916 5021 5021
Derived form the 1957-2012 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