Climate almanac
Grimsby
Ontario, Canada · 43.20°, -79.57°
What is the weather like in Grimsby in December?
In December, Grimsby is typically 38°F (3°C) during the day and 31°F (0°C) at night. The month brings about 3.4 in (86 mm) of precipitation in total. Snowfall averages about 7.1 in (180 mm) over the month.
- Average high38°F (3°C)
- Average low31°F (0°C)
- Precipitation3.4 in (86 mm)
- Clear or mostly clear days2
- Snowfall7.1 in (180 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)