Decatur, Michigan
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 31° -21° (1972) 63° (1967) 2.65" NA
February 17° 35° -23° (1978) 72° (2000) 2.03" NA
March 26° 45° -13° (1967) 80° (1986) 2.67" NA
April 36° 58° 6° (1972) 89° (2002) 3.48" NA
May 47° 70° 19° (1966) 92° (1978) 3.72" NA
June 56° 79° 30° (2003) 103° (1953) 3.67" NA
July 60° 83° 38° (2003) 103° (1999) 3.63" NA
August 57° 81° 36° (1967) 100° (1988) 3.9" NA
September 50° 74° 26° (2002) 99° (1953) 4.19" NA
October 39° 62° 13° (2002) 88° (1971) 3.51" NA
November 30° 48° 4° (1959) 77° (1987) 3.45" NA
December 20° 36° -20° (1989) 72° (2001) 3.16" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 21° 40° -13° (1967) 62° (2000) 0.07" NA
Mar 2 21° 40° -5° (1980) 67° (1992) 0.07" NA
Mar 3 21° 40° 1° (1982) 74° (1974) 0.08" NA
Mar 4 22° 41° -12° (2002) 74° (1983) 0.08" NA
Mar 5 22° 41° 0° (1978) 75° (1983) 0.08" NA
Mar 6 22° 42° 0° (2003) 76° (1983) 0.08" NA
Mar 7 23° 42° -6° (1999) 69° (1983) 0.08" NA
Mar 8 23° 42° -2° (1996) 78° (2000) 0.08" NA
Mar 9 23° 43° -5° (1978) 79° (2000) 0.08" NA
Mar 10 24° 43° 1° (1996) 65° (1977) 0.08" NA
Mar 11 24° 44° 2° (2002) 70° (1973) 0.08" NA
Mar 12 25° 44° -3° (1969) 76° (1990) 0.08" NA
Mar 13 25° 44° 6° (1960) 79° (1990) 0.08" NA
Mar 14 25° 45° 0° (1993) 75° (1995) 0.08" NA
Mar 15 26° 45° -1° (1993) 76° (1995) 0.08" NA
Mar 16 26° 45° 7° (1993) 72° (1995) 0.08" NA
Mar 17 26° 46° 8° (1967) 73° (1966) 0.09" NA
Mar 18 27° 46° 7° (1993) 72° (1966) 0.09" NA
Mar 19 27° 47° 10° (1993) 71° (1976) 0.09" NA
Mar 20 27° 47° 10° (1965) 72° (1976) 0.09" NA
Mar 21 28° 47° 8° (1965) 64° (1972) 0.09" NA
Mar 22 28° 48° 5° (2002) 75° (1991) 0.09" NA
Mar 23 28° 48° 11° (2002) 71° (1979) 0.09" NA
Mar 24 29° 49° -1° (1965) 73° (1963) 0.09" NA
Mar 25 29° 49° -1° (1974) 76° (2003) 0.09" NA
Mar 26 29° 49° 9° (2002) 78° (2007) 0.1" NA
Mar 27 30° 50° 0° (1965) 78° (2007) 0.1" NA
Mar 28 30° 50° 10° (1955) 79° (1989) 0.1" NA
Mar 29 30° 51° 8° (1970) 80° (1963) 0.1" NA
Mar 30 31° 51° 8° (1954) 80° (1986) 0.1" NA
Mar 31 31° 51° 16° (1954) 77° (1998) 0.1" NA
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