Climate almanac
Ajax
Ontario, Canada · 43.85°, -79.03°
What is the weather like in Ajax in December?
In December, Ajax is typically 37°F (3°C) during the day and 30°F (-1°C) at night. The month brings about 4.1 in (103 mm) of precipitation in total. Snowfall averages about 9.4 in (238 mm) over the month.
- Average high37°F (3°C)
- Average low30°F (-1°C)
- Precipitation4.1 in (103 mm)
- Clear or mostly clear days2
- Snowfall9.4 in (238 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)