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Period of Record General Climate Summary - Heating Degree Days

Station:(213290) GRAND MEADOW
From Year=1893 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1626 1366 1111 622 288 72 16 36 200 526 979 1447 8290
60 1471 1224 957 479 175 26 2 8 108 384 829 1292 6955
57 1378 1140 864 397 121 12 1 3 69 305 740 1199 6227
55 1316 1083 803 345 91 6 0 1 49 257 680 1137 5769
50 1161 942 651 226 39 1 0 0 18 155 534 982 4710
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 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