MECHANICSVILLE 5 NE, MARYLAND

Period of Record General Climate Summary - Heating Degree Days

From Year=1927 To Year=2012
Station:(185865) MECHANICSVILLE 5 NE
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
65 943 777 592 306 115 13 1 2 47 284 515 821 4416
60 789 637 446 189 45 2 0 0 13 164 375 669 3329
57 698 555 364 131 21 0 0 0 5 108 296 579 2756
55 637 500 312 98 11 0 0 0 2 77 249 519 2406
50 489 370 196 38 1 0 0 0 0 27 146 377 1644
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