Climate almanac
Jefferson
Wisconsin, United States · 43.01°, -88.81°
What is the weather like in Jefferson in January?
In January, Jefferson is typically 29°F (-1°C) during the day and 17°F (-8°C) at night. The month brings about 2.1 in (52 mm) of precipitation in total. Snowfall averages about 9.4 in (238 mm) over the month.
- Average high29°F (-1°C)
- Average low17°F (-8°C)
- Precipitation2.1 in (52 mm)
- Clear or mostly clear days6
- Snowfall9.4 in (238 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)