January weather in Mattoon, IL
The average temperature in Mattoon in January is 27.5°F (20.2°F–34.8°F). Average precipitation: 2.61 inches. Average snowfall is 5.2 inches.
January is a winter month in Mattoon, and is cooler than the annual average of 53.6°F. Daily temperatures swing about 14.6°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 30m. For travel, January is cold.
Avg High
34.8°F
Avg Low
20.2°F
Precipitation
2.61 in
Snow
5.2 in
January records in Mattoon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.0°F (1905) | -13.0°F (1968) | 0.62 in (1897) |
| January 2 | 62.1°F (1997) | -6.0°F (1979) | 0.76 in (1897) |
| January 3 | 63.0°F (1950) | -6.0°F (1904) | 3.34 in (1950) |
| January 4 | 64.9°F (1997) | -6.0°F (1959) | 1.37 in (1993) |
| January 5 | 60.1°F (1955) | -11.0°F (1999) | 1.32 in (2004) |
| January 6 | 54.0°F (1987) | -9.0°F (1970) | 0.99 in (1962) |
| January 7 | 63.0°F (1965) | -11.9°F (1968) | 0.64 in (1998) |
| January 8 | 60.1°F (1901) | -11.0°F (1970) | 0.87 in (2008) |
| January 9 | 57.9°F (1902) | -11.0°F (1982) | 1.17 in (1901) |
| January 10 | 60.1°F (1975) | -11.9°F (1962) | 1.38 in (1975) |
| January 11 | 57.0°F (1980) | -15.0°F (1977) | 3.21 in (2020) |
| January 12 | 68.0°F (1960) | -9.0°F (1974) | 0.74 in (2024) |
| January 13 | 62.1°F (1950) | -7.1°F (1997) | 1.74 in (2007) |
| January 14 | 62.1°F (1952) | -9.0°F (1979) | 1.27 in (1962) |
| January 15 | 62.1°F (1901) | -13.0°F (1972) | 1.40 in (1950) |
| January 16 | 66.9°F (1990) | -18.0°F (1977) | 0.68 in (1994) |
| January 17 | 69.1°F (1952) | -18.9°F (1977) | 1.02 in (1999) |
| January 18 | 63.0°F (1951) | -20.0°F (1994) | 2.15 in (1949) |
| January 19 | 62.1°F (1904) | -20.0°F (1994) | 1.00 in (2009) |
| January 20 | 69.1°F (1906) | -23.1°F (1985) | 1.15 in (2017) |
| January 21 | 68.0°F (1904) | -14.1°F (1984) | 1.15 in (1906) |
| January 22 | 62.1°F (1964) | -8.0°F (1970) | 1.23 in (1957) |
| January 23 | 66.9°F (1967) | -13.0°F (1963) | 1.38 in (2019) |
| January 24 | 69.1°F (1950) | -9.9°F (1963) | 0.73 in (2024) |
| January 25 | 70.0°F (1950) | -6.0°F (1905) | 1.12 in (1950) |
| January 26 | 57.0°F (1974) | -2.9°F (1985) | 1.56 in (1967) |
| January 27 | 62.1°F (1904) | -7.1°F (1963) | 0.79 in (1949) |
| January 28 | 64.9°F (1999) | -15.0°F (1963) | 1.60 in (1969) |
| January 29 | 63.0°F (1975) | -11.0°F (1966) | 1.06 in (1982) |
| January 30 | 57.0°F (1953) | -11.0°F (1966) | 2.10 in (2013) |
| January 31 | 66.9°F (1989) | -9.9°F (1965) | 1.14 in (1988) |