Oconomowoc

What is the weather like in Oconomowoc in December?

In December, Oconomowoc is typically 35°F (2°C) during the day and 23°F (-5°C) at night. The month brings about 2.0 in (50 mm) of precipitation in total. Snowfall averages about 6.3 in (159 mm) over the month.

• Average high35°F (2°C)
• Average low23°F (-5°C)
• Precipitation2.0 in (50 mm)
• Clear or mostly clear days5
• Snowfall6.3 in (159 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)