MARION, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(395228) MARION
From Year=1901 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 1538 1258 991 535 222 48 7 15 148 457 928 1377 7522
60 1383 1116 836 397 125 16 1 3 75 320 778 1222 6271
57 1290 1032 745 320 82 7 0 1 46 248 688 1129 5587
55 1228 975 684 272 59 4 0 0 32 205 629 1067 5156
50 1073 834 536 169 23 1 0 0 11 118 484 913 4161
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