UPPER MARLBORO 3 NNW, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1956 To Year=2012
Station:(189070) UPPER MARLBORO 3 NNW
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 42 54 178 419 714 950 1111 1070 826 489 231 70 6152
40 S 42 96 273 692 1406 2356 3467 4537 5363 5851 6082 6152 6152
45 M 18 24 98 284 559 800 956 915 676 342 134 32 4837
45 S 18 43 141 424 983 1783 2739 3654 4330 4672 4805 4837 4837
50 M 8 9 49 173 407 650 801 760 526 214 66 13 3676
50 S 8 16 65 238 645 1295 2096 2856 3382 3596 3663 3676 3676
55 M 3 2 22 95 267 500 646 605 380 115 27 5 2668
55 S 3 5 27 122 389 890 1536 2141 2521 2636 2664 2668 2668
60 M 1 0 9 46 153 354 491 451 245 50 9 1 1810
60 S 1 1 9 55 209 562 1053 1504 1749 1799 1808 1810 1810
Corn Growing Degree Days
50 M 30 40 116 250 441 632 758 727 535 305 144 46 4023
50 S 30 70 186 436 876 1508 2266 2993 3528 3833 3977 4023 4023
Derived form the 1956-2012 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