Climate almanac
Geneseo
Illinois, United States · 41.45°, -90.15°
What is the weather like in Geneseo in January?
In January, Geneseo is typically 32°F (0°C) during the day and 19°F (-7°C) at night. The month brings about 2.2 in (57 mm) of precipitation in total. Snowfall averages about 7.8 in (199 mm) over the month.
- Average high32°F (0°C)
- Average low19°F (-7°C)
- Precipitation2.2 in (57 mm)
- Clear or mostly clear days7
- Snowfall7.8 in (199 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)