MADISON, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(395088) MADISON
From Year=1940 To Year=1962
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1574 1297 1094 593 283 73 12 21 186 472 998 1375 7978
60 1419 1156 939 450 174 28 2 4 95 331 848 1220 6666
57 1326 1071 848 372 120 14 0 1 59 256 758 1127 5952
55 1264 1015 786 322 91 9 0 0 42 211 698 1065 5503
50 1109 874 635 212 41 2 0 0 15 121 549 910 4469
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