MIDDLETOWN 3 E, DELAWARE

Period of Record General Climate Summary - Heating Degree Days

From Year=1952 To Year=1988
Station:(075852) MIDDLETOWN 3 E
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 1041 853 684 366 121 15 1 3 43 272 548 867 4814
60 886 712 532 238 49 2 0 0 12 158 405 712 3706
57 793 628 442 171 25 0 0 0 4 104 323 620 3111
55 731 572 384 131 14 0 0 0 2 75 271 559 2740
50 578 436 249 56 2 0 0 0 0 27 159 412 1920
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