BRIGHTON DAM, MARYLAND

Period of Record General Climate Summary - Heating Degree Days

From Year=1948 To Year=2012
Station:(181125) BRIGHTON DAM
Averages Daily Extremes
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 861 764 664 376 131 21 1 7 69 283 645 899 4720
60 707 623 514 248 54 2 0 0 21 164 498 744 3575
57 615 539 428 181 27 1 0 0 10 110 413 652 2975
55 555 483 374 143 14 0 0 0 6 80 359 591 2604
50 413 349 247 65 1 0 0 0 1 27 238 440 1781
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
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