DAUPHIN ISLAND 2, ALABAMA

Period of Record General Climate Summary - Growing Degree Days

From Year=1975 To Year=2012
Station:(012172) DAUPHIN ISLAND 2
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 342 395 663 846 1102 1238 1340 1336 1200 959 675 439 10535
40 S 342 737 1400 2246 3347 4586 5925 7261 8461 9421 10095 10535 10535
45 M 214 269 510 696 947 1088 1185 1181 1050 804 525 299 8768
45 S 214 483 992 1688 2635 3723 4908 6089 7138 7943 8468 8768 8768
50 M 112 160 362 546 792 938 1030 1026 900 650 380 178 7073
50 S 112 272 634 1180 1972 2910 3940 4965 5865 6515 6895 7073 7073
55 M 44 76 224 398 637 788 875 871 750 495 245 87 5490
55 S 44 120 344 741 1378 2166 3041 3912 4662 5157 5402 5490 5490
60 M 10 22 109 254 482 638 720 716 600 344 134 32 4059
60 S 10 32 141 394 876 1514 2234 2950 3550 3893 4027 4059 4059
Corn Growing Degree Days
50 M 148 188 375 548 790 914 983 981 881 650 392 209 7059
50 S 148 336 711 1259 2049 2963 3946 4927 5808 6457 6849 7059 7059
Derived form the 1975-2012 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