January weather in Dover, IL
The average temperature in Dover in January is 22.1°F (13.8°F–30.3°F). Average precipitation: 1.96 inches. Average snowfall is 8.6 inches.
January is a winter month in Dover, and is cooler than the annual average of 49.7°F. Daily temperatures swing about 16.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 19m. For travel, January is cold.
Avg High
30.3°F
Avg Low
13.8°F
Precipitation
1.96 in
Snow
8.6 in
January records in Dover
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 50.0°F (2004) | -20.0°F (2018) | 1.06 in (2019) |
| January 2 | 60.1°F (2000) | -18.9°F (2018) | 1.49 in (1999) |
| January 3 | 60.1°F (1998) | -15.0°F (2018) | 0.77 in (2023) |
| January 4 | 64.0°F (1997) | -14.1°F (1999) | 0.88 in (1993) |
| January 5 | 54.0°F (2012) | -18.9°F (1999) | 0.64 in (2014) |
| January 6 | 63.0°F (2008) | -18.0°F (2014) | 0.51 in (1998) |
| January 7 | 64.0°F (2008) | -18.0°F (2014) | 0.25 in (2010) |
| January 8 | 60.1°F (2003) | -13.0°F (2015) | 1.01 in (1998) |
| January 9 | 55.0°F (2002) | -8.0°F (2010) | 0.32 in (1997) |
| January 10 | 53.1°F (2012) | -7.1°F (2010) | 0.83 in (2013) |
| January 11 | 55.0°F (2018) | -6.0°F (1997) | 1.03 in (2020) |
| January 12 | 57.0°F (2005) | -11.0°F (1997) | 0.88 in (2005) |
| January 13 | 46.9°F (1996) | -4.0°F (1997) | 0.83 in (1995) |
| January 14 | 45.0°F (1996) | -13.0°F (1994) | 0.56 in (1995) |
| January 15 | 54.0°F (1990) | -18.9°F (1994) | 0.52 in (1997) |
| January 16 | 57.0°F (1990) | -18.0°F (2009) | 0.18 in (2023) |
| January 17 | 55.9°F (1990) | -16.1°F (1994) | 1.38 in (2017) |
| January 18 | 57.0°F (1996) | -20.0°F (1994) | 0.77 in (2020) |
| January 19 | 57.0°F (2006) | -18.0°F (1994) | 0.98 in (1995) |
| January 20 | 43.0°F (2018) | -6.0°F (2008) | 1.09 in (2006) |
| January 21 | 48.9°F (2018) | -7.1°F (2011) | 1.05 in (1999) |
| January 22 | 57.0°F (2017) | -8.0°F (2024) | 0.54 in (2018) |
| January 23 | 57.9°F (2018) | -7.1°F (2014) | 0.66 in (1999) |
| January 24 | 46.0°F (1990) | -11.9°F (2008) | 0.66 in (2010) |
| January 25 | 52.0°F (2002) | -8.0°F (2008) | 1.20 in (1990) |
| January 26 | 57.0°F (2002) | -15.0°F (2019) | 0.56 in (2024) |
| January 27 | 60.1°F (2002) | -15.0°F (2019) | 0.35 in (2013) |
| January 28 | 57.0°F (2002) | -11.0°F (2014) | 1.15 in (2006) |
| January 29 | 64.0°F (2013) | -9.9°F (2014) | 1.98 in (2001) |
| January 30 | 57.9°F (2012) | -25.1°F (2019) | 0.73 in (2002) |
| January 31 | 68.0°F (1989) | -26.0°F (2019) | 0.89 in (2002) |