Sumner, Michigan
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 28° -24° (1959) 62° (1950) 1.87" 10.4"
February 14° 32° -25° (1959) 67° (1999) 1.45" 7.6"
March 23° 42° -13° (1962) 79° (2000) 2.34" 7.1"
April 34° 56° 5° (1982) 88° (2002) 2.94" 2"
May 45° 69° 23° (1966) 94° (2006) 2.95" 0"
June 54° 78° 34° (1980) 100° (1995) 3.18" 0"
July 59° 83° 41° (2001) 103° (1988) 2.7" 0"
August 57° 80° 36° (1982) 101° (1988) 3.75" 0"
September 49° 72° 27° (1991) 97° (1953) 3.75" 0"
October 38° 60° 20° (1997) 90° (2007) 2.72" 0.2"
November 29° 45° -1° (1949) 82° (1950) 2.65" 3.5"
December 19° 33° -10° (1976) 68° (2001) 2.17" 9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 53° 77° 43° (1970) 96° (1953) 0.13" NA
Sep 2 53° 76° 39° (1976) 97° (1953) 0.13" NA
Sep 3 53° 76° 39° (1974) 95° (1973) 0.14" NA
Sep 4 52° 76° 38° (1974) 92° (1999) 0.13" NA
Sep 5 52° 75° 38° (1997) 93° (1954) 0.13" NA
Sep 6 52° 75° 35° (1962) 92° (2007) 0.13" NA
Sep 7 51° 75° 36° (1986) 94° (1959) 0.13" NA
Sep 8 51° 75° 38° (1986) 95° (1960) 0.13" NA
Sep 9 51° 74° 36° (1995) 93° (1959) 0.13" NA
Sep 10 51° 74° 35° (1995) 92° (2002) 0.13" NA
Sep 11 50° 74° 35° (1995) 92° (1978) 0.13" NA
Sep 12 50° 73° 33° (1964) 94° (1952) 0.13" NA
Sep 13 50° 73° 34° (1964) 94° (1952) 0.13" NA
Sep 14 49° 73° 33° (1975) 90° (1952) 0.13" NA
Sep 15 49° 72° 34° (1964) 84° (1969) 0.13" NA
Sep 16 49° 72° 34° (1959) 88° (1991) 0.13" NA
Sep 17 48° 72° 34° (1959) 89° (1955) 0.13" NA
Sep 18 48° 71° 35° (1973) 88° (1955) 0.13" NA
Sep 19 48° 71° 34° (1979) 89° (1955) 0.13" NA
Sep 20 47° 71° 31° (1956) 87° (2002) 0.12" NA
Sep 21 47° 70° 31° (1991) 88° (1970) 0.12" NA
Sep 22 46° 70° 30° (1974) 87° (2007) 0.12" NA
Sep 23 46° 69° 28° (1974) 87° (1984) 0.12" NA
Sep 24 46° 69° 30° (1976) 86° (2004) 0.12" NA
Sep 25 45° 69° 30° (1989) 90° (2007) 0.12" NA
Sep 26 45° 68° 31° (1966) 83° (1973) 0.11" NA
Sep 27 45° 68° 28° (1965) 88° (1998) 0.11" NA
Sep 28 44° 68° 27° (1991) 85° (1999) 0.11" NA
Sep 29 44° 67° 28° (1991) 83° (1953) 0.11" NA
Sep 30 43° 67° 28° (1993) 84° (1979) 0.11" NA
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