January weather in Mahomet, IL
The average temperature in Mahomet in January is 25.2°F (17.4°F–33.1°F). Average precipitation: 2.33 inches.
January is a winter month in Mahomet, and is cooler than the annual average of 51.1°F. Daily temperatures swing about 15.7°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 26m. For travel, January is cold.
Avg High
33.1°F
Avg Low
17.4°F
Precipitation
2.33 in
Daylight
9h 26m
January records in Mahomet
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 52.3°F (2023) | -14.6°F (2018) | 0.73 in (2021) |
| January 2 | 62.2°F (2004) | -16.6°F (2018) | 0.24 in (2017) |
| January 3 | 63.0°F (2023) | -10.8°F (2014) | 1.10 in (2005) |
| January 4 | 48.6°F (2007) | -11.2°F (2018) | 0.84 in (2004) |
| January 5 | 53.2°F (2012) | -10.7°F (2018) | 1.03 in (2005) |
| January 6 | 61.2°F (2008) | -16.1°F (2018) | 0.17 in (2024) |
| January 7 | 66.9°F (2008) | -11.0°F (2014) | 0.34 in (2010) |
| January 8 | 61.5°F (2026) | -7.6°F (2015) | 1.35 in (2008) |
| January 9 | 61.9°F (2026) | -9.4°F (2010) | 0.65 in (2024) |
| January 10 | 58.3°F (2020) | -12.5°F (2010) | 1.06 in (2020) |
| January 11 | 59.7°F (2017) | 7.2°F (2022) | 1.65 in (2020) |
| January 12 | 62.8°F (2005) | 4.8°F (2003) | 1.22 in (2024) |
| January 13 | 60.1°F (2005) | -2.4°F (2011) | 1.91 in (2005) |
| January 14 | 52.0°F (2016) | -10.3°F (2024) | 0.81 in (2007) |
| January 15 | 45.7°F (2020) | -14.3°F (2009) | 0.18 in (2016) |
| January 16 | 57.0°F (2012) | -18.2°F (2009) | 0.42 in (2017) |
| January 17 | 57.2°F (2012) | -13.4°F (2003) | 0.59 in (2012) |
| January 18 | 46.9°F (2022) | -13.0°F (2003) | 0.97 in (2020) |
| January 19 | 56.3°F (2006) | -10.5°F (2003) | 1.08 in (2017) |
| January 20 | 52.7°F (2006) | -2.9°F (2016) | 0.59 in (2017) |
| January 21 | 61.9°F (2017) | -12.3°F (2011) | 0.28 in (2010) |
| January 22 | 55.4°F (2018) | -2.2°F (2014) | 0.71 in (2012) |
| January 23 | 49.3°F (2012) | -9.6°F (2003) | 0.44 in (2024) |
| January 24 | 47.1°F (2010) | -11.7°F (2003) | 0.48 in (2024) |
| January 25 | 49.1°F (2017) | -5.4°F (2008) | 0.67 in (2024) |
| January 26 | 53.8°F (2018) | -12.1°F (2019) | 0.65 in (2012) |
| January 27 | 51.8°F (2018) | -17.7°F (2003) | 0.27 in (2009) |
| January 28 | 55.9°F (2013) | -10.5°F (2026) | 0.61 in (2006) |
| January 29 | 61.2°F (2013) | -7.8°F (2026) | 0.94 in (2013) |
| January 30 | 55.0°F (2012) | -15.9°F (2004) | 0.85 in (2021) |
| January 31 | 60.4°F (2016) | -18.2°F (2004) | 0.42 in (2011) |