Copper Harbor, Michigan
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 23° -18° (1994) 46° (1990) 2.87" NA
February 10° 26° -22° (1994) 55° (1994) 1.56" NA
March 18° 35° -23° (2003) 66° (1989) 2" NA
April 30° 46° -2° (1994) 83° (1990) 2.05" NA
May 39° 59° 16° (1974) 89° (1999) 2.81" NA
June 47° 68° 32° (1992) 94° (2002) 2.86" NA
July 55° 74° 42° (2007) 99° (1988) 2.7" NA
August 57° 74° 38° (1976) 94° (2001) 2.72" NA
September 51° 66° 30° (1991) 95° (1998) 3.14" NA
October 39° 52° 21° (1984) 81° (2007) 2.71" NA
November 28° 39° 3° (1976) 67° (2001) 3.1" NA
December 17° 28° -11° (1976) 65° (2000) 2.53" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 55° 72° 38° (1987) 88° (1973) NA NA
Sep 2 55° 71° 31° (1976) 86° (1973) NA NA
Sep 3 55° 71° 38° (1972) 83° (2002) NA NA
Sep 4 54° 71° 41° (1974) 84° (2004) NA NA
Sep 5 54° 70° 42° (2000) 95° (1998) NA NA
Sep 6 54° 70° 44° (1992) 87° (1998) NA NA
Sep 7 54° 70° 44° (1992) 86° (2002) NA NA
Sep 8 53° 69° 41° (1990) 89° (2002) NA NA
Sep 9 53° 69° 38° (1975) 91° (2002) NA NA
Sep 10 53° 69° 36° (1995) 90° (2002) NA NA
Sep 11 52° 68° 39° (1985) 85° (1998) NA NA
Sep 12 52° 68° 40° (1985) 81° (1976) NA NA
Sep 13 52° 67° 38° (1973) 84° (1976) NA NA
Sep 14 51° 67° 33° (1975) 85° (1976) NA NA
Sep 15 51° 67° 39° (1995) 78° (2002) NA NA
Sep 16 51° 66° 33° (1976) 76° (1992) NA NA
Sep 17 50° 66° 35° (1990) 78° (2002) NA NA
Sep 18 50° 65° 39° (1991) 87° (2000) NA NA
Sep 19 50° 65° 33° (1993) 85° (1985) NA NA
Sep 20 49° 64° 36° (1974) 82° (1985) NA NA
Sep 21 49° 64° 35° (1973) 76° (1989) NA NA
Sep 22 48° 63° 35° (1995) 75° (2004) NA NA
Sep 23 48° 63° 31° (1974) 77° (2007) NA NA
Sep 24 48° 62° 36° (1989) 84° (2007) NA NA
Sep 25 47° 62° 37° (1985) 84° (2007) NA NA
Sep 26 47° 61° 32° (1976) 72° (1973) NA NA
Sep 27 46° 61° 34° (2000) 76° (2004) NA NA
Sep 28 46° 61° 31° (2000) 72° (2004) NA NA
Sep 29 46° 60° 30° (1991) 76° (2000) NA NA
Sep 30 45° 60° 33° (1974) 77° (1987) NA NA
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