Climate almanac
Jämsä
Central Finland, Finland · 61.86°, 25.19°
What is the weather like in Jämsä in December?
In December, Jämsä is typically 30°F (-1°C) during the day and 24°F (-5°C) at night. The month brings about 2.6 in (65 mm) of precipitation in total. Snowfall averages about 14 in (344 mm) over the month.
- Average high30°F (-1°C)
- Average low24°F (-5°C)
- Precipitation2.6 in (65 mm)
- Clear or mostly clear days1
- Snowfall14 in (344 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)