WESTERNPORT, MARYLAND

Period of Record General Climate Summary - Heating Degree Days

From Year=1894 To Year=1968
Station:(189405) WESTERNPORT
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 1015 896 708 393 144 29 3 8 73 312 636 960 5177
60 861 755 557 266 68 6 0 0 27 188 488 805 4021
57 768 670 469 200 38 2 0 0 13 129 403 713 3405
55 707 614 412 160 25 1 0 0 7 97 348 651 3023
50 555 476 281 81 6 0 0 0 1 39 226 500 2167
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