Mount Vernon

What is the weather like in Mount Vernon in December?

In December, Mount Vernon is typically 48°F (9°C) during the day and 33°F (1°C) at night. The month brings about 3.3 in (85 mm) of precipitation in total. Snowfall averages about 1.2 in (31 mm) over the month.

• Average high48°F (9°C)
• Average low33°F (1°C)
• Precipitation3.3 in (85 mm)
• Clear or mostly clear days7
• Snowfall1.2 in (31 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)