BAY SAINT LOUIS, MISSISSIPPI

Period of Record General Climate Summary - Growing Degree Days

From Year=1891 To Year=1979
Station:(220519) BAY SAINT LOUIS
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 382 406 637 836 1070 1213 1294 1294 1163 914 592 417 10217
40 S 382 788 1425 2261 3331 4544 5838 7132 8295 9209 9801 10217 10217
45 M 252 279 485 686 915 1063 1139 1139 1013 759 445 278 8453
45 S 252 532 1016 1702 2617 3680 4819 5958 6971 7730 8175 8453 8453
50 M 147 171 340 536 760 913 984 984 863 604 307 163 6772
50 S 147 318 658 1194 1954 2867 3851 4835 5698 6303 6609 6772 6772
55 M 73 91 211 389 605 763 829 829 713 451 187 80 5221
55 S 73 164 374 763 1368 2131 2960 3790 4502 4954 5141 5221 5221
60 M 26 38 109 250 450 613 674 674 563 305 97 29 3829
60 S 26 65 174 424 874 1487 2161 2835 3398 3704 3800 3829 3829
Corn Growing Degree Days
50 M 204 227 379 546 752 865 918 917 825 611 356 224 6825
50 S 204 431 810 1356 2108 2973 3892 4809 5634 6246 6601 6825 6825
Derived form the 1891-1979 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