FERNANDINA BEACH, FLORIDA

Period of Record General Climate Summary - Growing Degree Days

From Year=1892 To Year=2010
Station:(082944) FERNANDINA BEACH
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 444 462 674 835 1067 1186 1286 1282 1165 974 679 506 10561
40 S 444 907 1581 2415 3482 4668 5955 7237 8402 9375 10055 10561 10561
45 M 306 329 521 685 912 1036 1131 1127 1015 819 530 360 8770
45 S 306 635 1155 1840 2752 3788 4919 6046 7061 7880 8410 8770 8770
50 M 187 210 372 535 757 886 977 972 865 664 385 230 7039
50 S 187 397 770 1304 2061 2947 3924 4896 5761 6424 6810 7039 7039
55 M 99 116 238 386 602 736 822 817 715 509 251 127 5417
55 S 99 215 452 838 1440 2176 2998 3815 4530 5039 5290 5417 5417
60 M 41 51 127 245 447 586 667 662 565 358 140 57 3946
60 S 41 92 219 464 911 1497 2164 2826 3391 3749 3889 3946 3946
Corn Growing Degree Days
50 M 243 258 404 539 740 843 914 915 839 663 413 281 7052
50 S 243 501 905 1444 2184 3027 3941 4856 5695 6358 6771 7052 7052
Derived form the 1892-2010 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