January weather in Mazon, IL
The average temperature in Mazon in January is 23.4°F (15.7°F–31.2°F). Average precipitation: 2.09 inches. Average snowfall is 7.4 inches.
January is a winter month in Mazon, and is cooler than the annual average of 50.8°F. Daily temperatures swing about 15.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 20m. For travel, January is cold.
Avg High
31.2°F
Avg Low
15.7°F
Precipitation
2.09 in
Snow
7.4 in
January records in Mazon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (2005) | -17.0°F (1968) | 1.45 in (2011) |
| January 2 | 55.0°F (2005) | -15.0°F (2018) | 1.24 in (1951) |
| January 3 | 62.1°F (2000) | -15.0°F (2018) | 0.71 in (1950) |
| January 4 | 59.0°F (1997) | -14.1°F (1919) | 1.02 in (1922) |
| January 5 | 64.0°F (1997) | -20.9°F (1999) | 1.63 in (2007) |
| January 6 | 55.0°F (2019) | -18.9°F (1999) | 0.75 in (1918) |
| January 7 | 63.0°F (2008) | -16.1°F (1968) | 0.26 in (1998) |
| January 8 | 66.9°F (2008) | -15.0°F (1942) | 2.86 in (2008) |
| January 9 | 62.1°F (2026) | -9.9°F (1945) | 1.83 in (2026) |
| January 10 | 57.0°F (2002) | -15.0°F (1962) | 0.92 in (1924) |
| January 11 | 55.0°F (2018) | -15.0°F (1962) | 1.61 in (2020) |
| January 12 | 60.1°F (2018) | -17.0°F (1918) | 0.55 in (1966) |
| January 13 | 62.1°F (2005) | -13.0°F (1916) | 1.40 in (2005) |
| January 14 | 62.1°F (1928) | -18.0°F (1957) | 0.65 in (1940) |
| January 15 | 63.0°F (1949) | -23.1°F (1927) | 0.75 in (2007) |
| January 16 | 59.0°F (1949) | -20.0°F (2009) | 0.44 in (1969) |
| January 17 | 57.9°F (1952) | -18.0°F (2009) | 0.80 in (2017) |
| January 18 | 55.0°F (1951) | -17.0°F (1930) | 0.81 in (1949) |
| January 19 | 57.0°F (1996) | -14.1°F (1940) | 0.90 in (1933) |
| January 20 | 57.9°F (2006) | -20.0°F (1970) | 0.78 in (2017) |
| January 21 | 57.9°F (2006) | -20.0°F (1924) | 2.65 in (1916) |
| January 22 | 60.1°F (2017) | -18.9°F (1930) | 1.26 in (1999) |
| January 23 | 57.0°F (1967) | -22.0°F (1936) | 0.75 in (1965) |
| January 24 | 66.0°F (1967) | -16.1°F (1915) | 1.44 in (1938) |
| January 25 | 68.0°F (1950) | -14.1°F (1920) | 0.37 in (1997) |
| January 26 | 66.9°F (1950) | -13.0°F (2019) | 0.58 in (1967) |
| January 27 | 63.0°F (1944) | -16.1°F (1955) | 0.80 in (1967) |
| January 28 | 61.0°F (2002) | -20.9°F (1963) | 0.40 in (1949) |
| January 29 | 61.0°F (2002) | -17.0°F (1966) | 0.83 in (2006) |
| January 30 | 63.0°F (2013) | -23.1°F (2019) | 1.30 in (2013) |
| January 31 | 54.0°F (2012) | -22.0°F (2019) | 1.14 in (2002) |