FORT GEORGE G MEADE, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1942 To Year=1975
Station:(183230) FORT GEORGE G MEADE
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 58 53 174 419 730 947 1101 1060 824 516 223 65 6170
40 S 58 111 285 704 1434 2381 3482 4542 5366 5882 6105 6170 6170
45 M 26 22 96 284 575 797 946 905 674 367 128 29 4849
45 S 26 48 144 427 1003 1800 2746 3651 4325 4692 4820 4849 4849
50 M 10 8 48 173 423 647 791 750 526 231 63 10 3679
50 S 10 18 66 239 662 1309 2100 2850 3376 3607 3669 3679 3679
55 M 3 3 21 94 281 497 636 595 381 125 26 2 2664
55 S 3 6 27 120 401 899 1535 2130 2511 2635 2662 2664 2664
60 M 1 1 6 44 160 350 481 440 249 53 9 0 1793
60 S 1 1 7 51 212 561 1042 1482 1731 1784 1793 1793 1793
Corn Growing Degree Days
50 M 37 39 122 270 466 625 745 717 540 328 139 41 4069
50 S 37 76 199 469 935 1559 2304 3021 3561 3890 4028 4069 4069
Derived form the 1942-1975 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