CLEARWATER, FLORIDA

Period of Record General Climate Summary - Growing Degree Days

From Year=1931 To Year=1977
Station:(081632) CLEARWATER
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 691 629 835 957 1154 1226 1304 1305 1222 1087 817 709 11935
40 S 691 1320 2155 3112 4265 5491 6795 8100 9322 10409 11227 11935 11935
45 M 539 488 680 807 999 1076 1149 1150 1072 932 668 555 10115
45 S 539 1027 1707 2514 3513 4589 5738 6888 7960 8892 9560 10115 10115
50 M 392 352 526 657 844 926 994 995 922 777 519 406 8310
50 S 392 744 1270 1927 2771 3697 4691 5686 6608 7385 7904 8310 8310
55 M 259 227 377 507 689 776 839 840 772 622 375 269 6551
55 S 259 486 862 1369 2058 2834 3672 4513 5285 5907 6282 6551 6551
60 M 147 123 237 359 534 626 684 685 622 468 240 153 4877
60 S 147 271 508 866 1400 2026 2709 3395 4017 4484 4724 4877 4877
Corn Growing Degree Days
50 M 421 377 536 654 821 875 931 930 876 767 531 433 8153
50 S 421 798 1335 1989 2810 3685 4616 5546 6422 7189 7720 8153 8153
Derived form the 1931-1977 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