WILMINGTON WSO ARPT, DELAWARE

Period of Record General Climate Summary - Cooling Degree Days

From Year=1948 To Year=2012
Station:(079595) WILMINGTON WSO ARPT
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 12 70 248 501 665 617 386 120 20 2 2641
57 0 0 8 51 198 441 603 555 329 89 13 1 2287
60 0 0 4 29 135 353 510 462 248 53 5 0 1799
65 0 0 1 10 60 216 355 309 134 18 1 0 1102
70 0 0 0 2 20 106 206 168 56 4 0 0 562
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