HAGERSTOWN, MARYLAND

Period of Record General Climate Summary - Cooling Degree Days

From Year=1895 To Year=1993
Station:(183975) HAGERSTOWN
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 1 1 15 89 273 490 634 580 359 115 18 2 2577
57 0 1 10 67 222 430 572 518 305 85 11 1 2222
60 0 0 5 41 155 342 479 425 228 50 5 1 1731
65 0 0 1 15 71 206 325 273 122 17 1 0 1031
70 0 0 0 4 21 97 180 139 50 4 0 0 494
Cooling 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.
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