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Period of Record General Climate Summary - Cooling Degree Days

Station:(218907) WHEATON
From Year=1914 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 0 0 1 28 162 374 544 481 220 49 1 0 1860
57 0 0 1 19 126 318 482 420 177 35 0 0 1578
60 0 0 0 10 81 238 390 331 123 19 0 0 1193
65 0 0 0 3 33 126 244 194 59 6 0 0 664
70 0 0 0 1 10 52 120 89 23 1 0 0 296
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu