LA PLATA 1 W, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1894 To Year=1998
Station:(185080) LA PLATA 1 W
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 68 80 226 457 746 964 1120 1076 868 556 258 89 6507
40 S 68 148 374 831 1578 2541 3661 4737 5605 6161 6418 6507 6507
45 M 32 38 131 317 591 814 965 921 718 404 155 42 5129
45 S 32 70 201 518 1110 1924 2889 3809 4527 4932 5087 5129 5129
50 M 13 16 71 197 437 664 810 766 568 266 83 16 3905
50 S 13 29 99 296 733 1397 2207 2973 3541 3806 3889 3905 3905
55 M 4 5 33 109 293 514 655 611 420 151 37 5 2838
55 S 4 10 43 152 445 959 1614 2225 2645 2796 2833 2838 2838
60 M 1 1 13 52 170 366 500 456 280 70 13 1 1925
60 S 1 2 16 68 238 604 1104 1560 1840 1911 1924 1925 1925
Corn Growing Degree Days
50 M 41 51 147 284 469 645 771 737 568 340 154 51 4258
50 S 41 92 239 524 992 1638 2409 3146 3714 4053 4207 4258 4258
Derived form the 1894-1998 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