Climate almanac
Thunder Bay
Ontario, Canada · 48.38°, -89.25°
What is the weather like in Thunder Bay in April?
In April, Thunder Bay is typically 43°F (6°C) during the day and 26°F (-3°C) at night. The month brings about 2.8 in (71 mm) of precipitation in total. Snowfall averages about 11 in (276 mm) over the month.
- Average high43°F (6°C)
- Average low26°F (-3°C)
- Precipitation2.8 in (71 mm)
- Clear or mostly clear days7
- Snowfall11 in (276 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)