Decatur, Ohio
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 40° -28° (1994) 73° (1999) 3.1" 5.2"
February 20° 44° -11° (2004) 75° (2000) 2.99" 5.2"
March 27° 54° -5° (1980) 81° (1998) 4.38" 2.4"
April 36° 66° 15° (1997) 88° (1986) 3.99" 0.4"
May 46° 74° 25° (1966) 93° (1962) 5.36" 0"
June 55° 83° 36° (2003) 102° (1988) 4.39" 0"
July 58° 86° 43° (1988) 103° (1999) 4.88" 0"
August 56° 86° 39° (1986) 103° (1988) 3.44" 0"
September 48° 79° 30° (1993) 97° (2002) 3.05" 0"
October 38° 67° 18° (1976) 90° (1959) 3.5" 0.1"
November 30° 55° 2° (1976) 81° (1961) 3.45" 0.4"
December 21° 43° -22° (1989) 76° (1982) 3.53" 3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 18° 40° -4° (1968) 66° (1985) 0.11" 0.1"
Jan 2 18° 40° 1° (1968) 66° (1985) 0.1" 0.2"
Jan 3 18° 40° -1° (1979) 65° (2000) 0.1" 0.1"
Jan 4 18° 40° -1° (1979) 68° (2004) 0.1" 0.1"
Jan 5 18° 40° -3° (1999) 68° (1997) 0.1" 0.2"
Jan 6 18° 40° -3° (1999) 63° (1998) 0.1" 0.1"
Jan 7 18° 40° -5° (1970) 62° (1998) 0.1" 0.2"
Jan 8 18° 40° -11° (1968) 64° (1965) 0.1" 0.2"
Jan 9 18° 40° -5° (1976) 67° (1998) 0.1" 0.1"
Jan 10 18° 40° -13° (1982) 61° (1975) 0.1" 0.2"
Jan 11 18° 40° -14° (1982) 61° (1975) 0.1" 0.2"
Jan 12 18° 40° -5° (1978) 65° (1960) 0.11" 0.1"
Jan 13 18° 40° -9° (1977) 68° (2005) 0.1" 0.2"
Jan 14 18° 40° -7° (1964) 70° (2005) 0.1" 0.1"
Jan 15 18° 40° -10° (1994) 68° (1995) 0.1" 0.2"
Jan 16 18° 40° -16° (1994) 60° (1974) 0.1" 0.2"
Jan 17 18° 40° -20° (1977) 61° (1973) 0.1" 0.2"
Jan 18 18° 40° -16° (1977) 63° (1973) 0.1" 0.1"
Jan 19 18° 40° -28° (1994) 71° (1996) 0.1" 0.2"
Jan 20 18° 40° -22° (1985) 60° (1989) 0.1" 0.2"
Jan 21 18° 40° -23° (1985) 61° (1990) 0.1" 0.2"
Jan 22 18° 40° -16° (1984) 65° (1967) 0.1" 0.1"
Jan 23 18° 40° -3° (1963) 73° (1999) 0.09" 0.2"
Jan 24 18° 40° -19° (1963) 70° (1967) 0.1" 0.2"
Jan 25 18° 40° -9° (1963) 68° (1972) 0.1" 0.1"
Jan 26 18° 40° -3° (2000) 71° (1967) 0.1" 0.2"
Jan 27 18° 41° -10° (2003) 68° (1967) 0.09" 0.2"
Jan 28 18° 41° -16° (1963) 68° (1999) 0.1" 0.2"
Jan 29 18° 41° -12° (1977) 69° (1975) 0.1" 0.2"
Jan 30 18° 41° -12° (1966) 67° (2002) 0.1" 0.2"
Jan 31 18° 41° -12° (2004) 62° (1988) 0.1" 0.2"
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