Climate almanac
St. Catharines
Ontario, Canada · 43.17°, -79.24°
What is the weather like in St. Catharines in March?
In March, St. Catharines is typically 42°F (5°C) during the day and 32°F (0°C) at night. The month brings about 3.5 in (88 mm) of precipitation in total. Snowfall averages about 4.9 in (124 mm) over the month.
- Average high42°F (5°C)
- Average low32°F (0°C)
- Precipitation3.5 in (88 mm)
- Clear or mostly clear days6
- Snowfall4.9 in (124 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)