CRYSTAL FALLS 6 NE, MICHIGAN

Period of Record General Climate Summary - Cooling Degree Days

Station:(201922) CRYSTAL FALLS WAY DAM
From Year=1948 To Year=1989
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 0 0 0 9 79 183 316 242 79 15 0 0 922
57 0 0 0 6 58 143 260 192 56 10 0 0 724
60 0 0 0 3 35 92 183 127 31 4 0 0 475
65 0 0 0 1 11 35 83 50 10 1 0 0 190
70 0 0 0 0 2 8 26 13 2 0 0 0 51
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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