HAGERSTOWN, MARYLAND

Period of Record General Climate Summary - Heating Degree Days

From Year=1895 To Year=1993
Station:(183975) HAGERSTOWN
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 1047 893 711 367 123 17 1 4 69 301 607 949 5087
60 892 752 559 243 52 3 0 0 25 179 461 794 3961
57 799 668 472 179 26 1 0 0 11 121 377 702 3357
55 738 613 415 141 15 0 0 0 6 89 324 641 2982
50 585 475 283 66 2 0 0 0 1 34 204 490 2142
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