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Period of Record General Climate Summary - Heating Degree Days

Station:(478349) SUPERIOR
From Year=1909 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 1667 1400 1201 787 506 224 69 78 266 593 1008 1473 9272
60 1512 1259 1046 637 361 122 22 23 151 442 858 1318 7750
57 1419 1174 953 548 280 76 8 8 97 354 768 1225 6912
55 1357 1118 891 490 229 52 4 4 69 299 708 1163 6384
50 1202 977 737 349 121 14 0 0 23 177 559 1008 5168
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