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Period of Record General Climate Summary - Cooling Degree Days

Station:(214103) ISLE 12 N
From Year=1959 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 10 90 253 405 336 133 24 0 0 1253
57 0 0 1 6 66 203 345 278 101 16 0 0 1016
60 0 0 0 3 38 137 258 198 63 7 0 0 704
65 0 0 0 1 12 57 132 90 22 1 0 0 315
70 0 0 0 0 2 16 48 27 5 0 0 0 99
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