Climate almanac
Nepean
Ontario, Canada · 45.34°, -75.72°
What is the weather like in Nepean in December?
In December, Nepean is typically 31°F (-1°C) during the day and 19°F (-7°C) at night. The month brings about 3.4 in (87 mm) of precipitation in total. Snowfall averages about 11 in (290 mm) over the month.
- Average high31°F (-1°C)
- Average low19°F (-7°C)
- Precipitation3.4 in (87 mm)
- Clear or mostly clear days2
- Snowfall11 in (290 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)