IRON MTN KINGSFORD WWTP, MICHIGAN

Period of Record General Climate Summary - Heating Degree Days

Station:(204090) IRON MTN-KINGSFORD WWTP
From Year=1899 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 1581 1368 1173 712 373 124 47 79 262 581 977 1405 8682
60 1426 1227 1018 566 245 53 12 27 153 433 827 1250 7237
57 1333 1142 925 481 179 27 4 12 102 349 737 1157 6448
55 1271 1086 863 425 141 16 2 6 75 296 677 1095 5955
50 1116 945 710 295 67 3 1 2 29 180 529 940 4816
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