Mattoon, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 33° -23° (1985) 70° (1950) 2.03" 5.6"
February 21° 39° -17° (1996) 74° (2000) 2.08" 4.5"
March 32° 50° -8° (1960) 85° (1981) 3.06" 2.5"
April 42° 62° 17° (1987) 89° (1987) 3.84" 0.1"
May 53° 73° 28° (1966) 95° (1987) 3.95" 0"
June 63° 83° 41° (1992) 105° (1954) 4.21" 0"
July 66° 86° 48° (1962) 111° (1954) 4.16" 0"
August 64° 84° 40° (1986) 104° (1988) 3.25" 0"
September 56° 78° 33° (1983) 103° (1954) 3.06" 0"
October 45° 66° 19° (1962) 92° (1954) 3.02" 0"
November 33° 51° -2° (1950) 82° (1950) 3.71" 1.1"
December 22° 38° -20° (1989) 71° (1998) 2.84" 4.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 18° 34° -13° (1968) 63° (1952) 0.07" NA
Jan 2 18° 33° -6° (1979) 62° (1997) 0.07" NA
Jan 3 18° 33° -2° (1979) 63° (1950) 0.07" NA
Jan 4 17° 33° -6° (1959) 65° (1997) 0.07" NA
Jan 5 17° 33° -11° (1999) 60° (1955) 0.07" NA
Jan 6 17° 33° -9° (1970) 54° (1987) 0.07" NA
Jan 7 17° 33° -12° (1968) 63° (1965) 0.07" NA
Jan 8 17° 33° -11° (1970) 54° (1954) 0.07" NA
Jan 9 17° 33° -11° (1982) 57° (1954) 0.07" NA
Jan 10 17° 33° -12° (1962) 60° (1975) 0.07" NA
Jan 11 16° 33° -15° (1977) 57° (1980) 0.07" NA
Jan 12 16° 32° -9° (1974) 68° (1960) 0.07" NA
Jan 13 16° 32° -7° (1997) 62° (1950) 0.07" NA
Jan 14 16° 32° -9° (1979) 62° (1952) 0.06" NA
Jan 15 16° 32° -13° (1972) 62° (1949) 0.06" NA
Jan 16 16° 32° -18° (1977) 67° (1990) 0.06" NA
Jan 17 16° 32° -19° (1977) 69° (1952) 0.06" NA
Jan 18 16° 33° -20° (1994) 63° (1951) 0.06" NA
Jan 19 16° 33° -20° (1994) 62° (1952) 0.06" NA
Jan 20 16° 33° -23° (1985) 59° (1951) 0.06" NA
Jan 21 16° 33° -14° (1984) 65° (1986) 0.06" NA
Jan 22 16° 33° -8° (1970) 62° (1964) 0.06" NA
Jan 23 16° 33° -13° (1963) 67° (1967) 0.06" NA
Jan 24 16° 33° -10° (1963) 69° (1950) 0.06" NA
Jan 25 16° 33° -4° (1961) 70° (1950) 0.06" NA
Jan 26 17° 33° -3° (1985) 57° (1974) 0.06" NA
Jan 27 17° 34° -7° (1963) 63° (1999) 0.06" NA
Jan 28 17° 34° -15° (1963) 65° (1999) 0.07" NA
Jan 29 17° 34° -11° (1966) 63° (1975) 0.07" NA
Jan 30 17° 34° -11° (1966) 57° (1953) 0.07" NA
Jan 31 17° 34° -10° (1965) 67° (1989) 0.07" NA
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