Climate almanac
Janesville
Wisconsin, United States · 42.68°, -89.02°
What is the weather like in Janesville in April?
In April, Janesville is typically 58°F (15°C) during the day and 39°F (4°C) at night. The month brings about 4.0 in (101 mm) of precipitation in total. Snowfall averages about 3.0 in (76 mm) over the month.
- Average high58°F (15°C)
- Average low39°F (4°C)
- Precipitation4.0 in (101 mm)
- Clear or mostly clear days6
- Snowfall3.0 in (76 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)