HEFLIN, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1956 To Year=2012
Station:(013775) HEFLIN
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 116 169 353 576 834 1029 1171 1148 936 604 325 163 7425
40 S 116 286 638 1214 2049 3078 4249 5397 6333 6936 7261 7425 7425
45 M 55 94 229 430 679 879 1016 993 786 450 207 88 5907
45 S 55 149 378 808 1487 2366 3382 4375 5161 5612 5819 5907 5907
50 M 22 45 131 293 525 729 861 838 636 304 114 41 4538
50 S 22 66 197 490 1015 1744 2605 3443 4079 4383 4497 4538 4538
55 M 6 17 61 175 373 579 706 683 487 178 50 16 3330
55 S 6 23 84 259 631 1210 1916 2599 3086 3265 3315 3330 3330
60 M 1 4 21 85 232 429 551 528 341 84 17 4 2298
60 S 1 5 26 111 342 772 1323 1851 2192 2277 2294 2298 2298
Corn Growing Degree Days
50 M 83 126 241 382 546 689 792 776 620 404 231 114 5004
50 S 83 209 449 832 1378 2068 2860 3636 4255 4659 4890 5004 5004
Derived form the 1956-2012 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