EDGARTOWN, MASSACHUSETTS

Period of Record General Climate Summary - Growing Degree Days

Station:(192501) EDGARTOWN
From Year=1946 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 19 13 50 191 468 726 941 926 715 446 195 48 4736
40 S 19 31 81 272 740 1466 2407 3333 4048 4493 4688 4736 4736
45 M 4 2 14 84 314 576 786 771 565 298 98 15 3528
45 S 4 6 20 104 418 994 1781 2551 3116 3414 3513 3528 3528
50 M 1 0 2 27 174 426 631 616 415 170 38 3 2504
50 S 1 1 3 30 204 630 1261 1877 2292 2462 2501 2504 2504
55 M 0 0 0 6 73 279 476 461 271 76 10 0 1653
55 S 0 0 1 6 79 358 834 1295 1566 1642 1652 1653 1653
60 M 0 0 0 1 21 146 321 307 144 23 1 0 965
60 S 0 0 0 1 22 168 490 796 940 964 965 965 965
Corn Growing Degree Days
50 M 6 4 19 81 229 432 628 614 431 229 81 18 2773
50 S 6 10 29 110 338 771 1399 2013 2445 2674 2755 2773 2773
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Western Regional Climate Center, wrcc@dri.edu