Ontonagon, Michigan
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -31° (1984) 56° (1981) 2.85" 53.4"
February 30° -42° (1979) 63° (1981) 1.68" 27.1"
March 18° 40° -27° (1984) 74° (1986) 1.73" 18.9"
April 30° 54° -4° (2003) 89° (2002) 2.26" 6.9"
May 41° 67° 18° (1978) 95° (2006) 2.97" 1"
June 50° 75° 25° (1992) 96° (2005) 3.03" 0"
July 55° 79° 32° (1988) 101° (1988) 3.28" 0"
August 54° 78° 34° (1982) 99° (1983) 2.86" 0"
September 47° 70° 25° (1981) 96° (1998) 3.28" 0.1"
October 37° 56° 15° (1989) 88° (2007) 3.5" 2.5"
November 27° 41° -5° (1993) 77° (1978) 2.69" 23.5"
December 14° 29° -23° (1996) 62° (1982) 3.04" 54.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 20° 33° 3° (1978) 53° (1998) 0.1" 1.4"
Dec 2 19° 33° -3° (1991) 60° (1982) 0.09" 1.5"
Dec 3 19° 32° -1° (1980) 62° (1982) 0.1" 1.5"
Dec 4 18° 32° 6° (1985) 50° (1998) 0.1" 1.5"
Dec 5 18° 32° -4° (1985) 56° (2001) 0.1" 1.6"
Dec 6 18° 31° -15° (1991) 55° (2001) 0.09" 1.6"
Dec 7 17° 31° -5° (1978) 42° (1990) 0.1" 1.7"
Dec 8 17° 31° -7° (2000) 50° (1990) 0.1" 1.7"
Dec 9 16° 30° -5° (1995) 50° (1984) 0.09" 1.7"
Dec 10 16° 30° -7° (2007) 48° (2006) 0.1" 1.8"
Dec 11 16° 30° -16° (1978) 49° (1998) 0.1" 1.7"
Dec 12 15° 30° -18° (1988) 53° (1998) 0.1" 1.8"
Dec 13 15° 29° -15° (2000) 45° (1998) 0.1" 1.8"
Dec 14 15° 29° -9° (1985) 55° (1998) 0.1" 1.9"
Dec 15 14° 29° -14° (2010) 55° (1997) 0.1" 1.8"
Dec 16 14° 29° -17° (2008) 52° (1984) 0.1" 1.8"
Dec 17 14° 28° -4° (2009) 42° (1977) 0.1" 1.8"
Dec 18 13° 28° -10° (1983) 52° (1997) 0.1" 1.8"
Dec 19 13° 28° -18° (1991) 45° (2006) 0.1" 1.8"
Dec 20 13° 28° -12° (1983) 46° (1994) 0.1" 1.8"
Dec 21 13° 28° -12° (1989) 47° (1994) 0.1" 1.8"
Dec 22 12° 27° -10° (1989) 48° (1991) 0.09" 1.9"
Dec 23 12° 27° -14° (1983) 45° (1986) 0.1" 1.8"
Dec 24 12° 27° -10° (1983) 50° (1994) 0.1" 1.9"
Dec 25 12° 27° -22° (2004) 50° (1994) 0.1" 1.8"
Dec 26 11° 27° -20° (1996) 50° (1994) 0.09" 1.8"
Dec 27 11° 27° -23° (1996) 44° (2003) 0.1" 1.9"
Dec 28 11° 27° -5° (1977) 49° (2003) 0.1" 1.8"
Dec 29 11° 26° -4° (1983) 45° (1986) 0.1" 1.9"
Dec 30 11° 26° -8° (1983) 42° (1979) 0.09" 1.8"
Dec 31 10° 26° -12° (1990) 45° (2004) 0.1" 1.8"
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