BANKHEAD LOCK AND DAM, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1957 To Year=2012
Station:(010505) BANKHEAD LOCK AND DAM
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 144 202 410 652 917 1106 1238 1219 1013 702 400 205 8209
40 S 144 347 757 1408 2325 3431 4670 5889 6902 7604 8004 8209 8209
45 M 73 118 277 503 762 956 1083 1064 863 548 268 114 6630
45 S 73 190 468 971 1732 2689 3772 4836 5700 6247 6516 6630 6630
50 M 32 61 167 360 607 806 928 909 713 396 160 56 5195
50 S 32 93 259 619 1226 2032 2961 3870 4583 4979 5139 5195 5195
55 M 11 25 86 232 453 656 773 754 564 256 80 23 3912
55 S 11 36 122 353 806 1462 2236 2990 3554 3809 3889 3912 3912
60 M 2 7 35 126 304 506 618 599 416 141 30 6 2791
60 S 2 9 44 170 474 980 1599 2198 2614 2755 2785 2791 2791
Corn Growing Degree Days
50 M 91 135 263 421 604 744 837 824 678 449 253 129 5429
50 S 91 226 490 911 1515 2259 3096 3920 4598 5047 5300 5429 5429
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