CHESTERTOWN, MARYLAND

Period of Record General Climate Summary - Cooling Degree Days

From Year=1893 To Year=2011
Station:(181750) CHESTERTOWN
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 2 2 17 82 284 521 680 630 416 137 23 2 2797
57 1 1 11 61 231 461 618 568 358 103 15 1 2429
60 0 0 6 36 162 372 525 476 275 62 7 0 1921
65 0 0 1 13 76 233 370 322 154 22 2 0 1192
70 0 0 0 3 26 119 220 180 67 6 0 0 622
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