GLENN DALE BELL STN, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1921 To Year=2007
Station:(183675) GLENN DALE BELL STN
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 52 59 187 414 719 951 1112 1063 838 504 226 71 6196
40 S 52 111 298 712 1431 2382 3494 4557 5395 5899 6125 6196 6196
45 M 22 27 106 278 565 801 957 908 688 356 132 32 4872
45 S 22 49 155 434 998 1799 2756 3664 4351 4708 4840 4872 4872
50 M 9 10 55 168 412 651 802 753 538 225 68 12 3703
50 S 9 19 74 242 654 1304 2106 2860 3398 3623 3691 3703 3703
55 M 2 3 25 90 271 501 647 598 392 123 29 4 2685
55 S 2 6 31 120 392 893 1540 2138 2530 2653 2682 2685 2685
60 M 0 1 10 41 155 354 492 444 257 55 9 1 1819
60 S 0 1 11 52 207 561 1053 1497 1754 1809 1818 1819 1819
Corn Growing Degree Days
50 M 36 46 138 273 459 630 750 715 549 327 149 47 4119
50 S 36 83 221 494 953 1583 2332 3048 3597 3923 4072 4119 4119
Derived form the 1921-2007 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