MIDDLETOWN 3 E, DELAWARE

Period of Record General Climate Summary - Growing Degree Days

From Year=1952 To Year=1988
Station:(075852) MIDDLETOWN 3 E
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 25 48 153 398 717 955 1124 1079 863 526 230 71 6191
40 S 25 73 226 625 1342 2297 3422 4500 5363 5889 6119 6191 6191
45 M 8 21 74 262 562 805 969 924 713 377 130 30 4875
45 S 8 29 103 364 927 1732 2701 3625 4338 4715 4844 4875 4875
50 M 2 7 31 152 409 655 814 769 563 242 63 10 3716
50 S 2 9 39 191 600 1255 2070 2838 3401 3643 3706 3716 3716
55 M 0 2 10 77 267 505 659 614 414 135 25 2 2711
55 S 0 2 12 88 355 861 1520 2134 2548 2683 2708 2711 2711
60 M 0 0 3 33 147 357 504 459 275 63 9 0 1851
60 S 0 0 3 36 183 540 1045 1504 1778 1842 1850 1851 1851
Corn Growing Degree Days
50 M 15 30 95 235 442 635 769 740 564 318 130 37 4009
50 S 15 45 139 375 817 1452 2221 2961 3524 3842 3972 4009 4009
Derived form the 1952-1988 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