EAGLE HARBOR CG, MICHIGAN

Period of Record General Climate Summary - Heating Degree Days

Station:(202332) EAGLE HARBOR
From Year=1899 To Year=1972
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1456 1356 1218 830 568 300 130 127 281 553 910 1283 9012
60 1301 1215 1063 680 419 177 51 47 163 406 760 1128 7409
57 1208 1130 970 591 335 117 23 21 107 323 670 1035 6529
55 1146 1074 908 532 282 83 12 11 76 270 611 973 5978
50 991 933 753 389 166 27 2 1 26 156 462 818 4723
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