Climate almanac
Thunder Bay
Ontario, Canada · 48.38°, -89.25°
What is the weather like in Thunder Bay in March?
In March, Thunder Bay is typically 33°F (1°C) during the day and 15°F (-9°C) at night. The month brings about 1.6 in (40 mm) of precipitation in total. Snowfall averages about 8.8 in (223 mm) over the month.
- Average high33°F (1°C)
- Average low15°F (-9°C)
- Precipitation1.6 in (40 mm)
- Clear or mostly clear days7
- Snowfall8.8 in (223 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)