Climate almanac
Oswego
New York, United States · 43.46°, -76.51°
What is the weather like in Oswego in December?
In December, Oswego is typically 39°F (4°C) during the day and 31°F (-1°C) at night. The month brings about 5.8 in (147 mm) of precipitation in total. Snowfall averages about 15 in (390 mm) over the month.
- Average high39°F (4°C)
- Average low31°F (-1°C)
- Precipitation5.8 in (147 mm)
- Clear or mostly clear days1
- Snowfall15 in (390 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)