UPPER MARLBORO 3 NNW, MARYLAND

Period of Record General Climate Summary - Cooling Degree Days

From Year=1956 To Year=2012
Station:(189070) UPPER MARLBORO 3 NNW
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 3 2 22 95 267 500 646 605 380 115 27 5 2668
57 2 1 15 72 218 441 584 543 324 85 18 3 2307
60 1 0 9 46 153 354 491 451 245 50 9 1 1810
65 0 0 3 19 73 219 337 299 134 17 2 0 1102
70 0 0 0 6 26 110 192 162 56 4 0 0 556
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