BRIGHTON DAM, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1948 To Year=2012
Station:(181125) BRIGHTON DAM
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 90 66 173 384 691 919 1080 1004 771 516 169 52 5916
40 S 90 156 329 713 1404 2323 3403 4408 5178 5695 5864 5916 5916
45 M 44 26 97 251 536 769 925 849 621 367 96 19 4599
45 S 44 70 166 417 954 1723 2648 3497 4117 4484 4580 4599 4599
50 M 17 9 50 145 382 619 770 694 472 232 43 6 3439
50 S 17 26 76 220 603 1222 1992 2686 3158 3390 3433 3439 3439
55 M 4 2 21 73 240 469 615 539 326 130 14 2 2436
55 S 4 6 28 100 341 810 1425 1964 2291 2420 2434 2436 2436
60 M 1 0 6 28 125 321 460 384 191 59 4 0 1580
60 S 1 1 8 36 161 482 942 1327 1518 1577 1580 1580 1580
Corn Growing Degree Days
50 M 64 52 123 255 432 598 717 672 493 334 119 39 3900
50 S 64 116 239 495 927 1525 2242 2914 3407 3741 3860 3900 3900
Derived form the 1948-2012 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