Climate almanac
Roscommon
Connacht, Ireland · 53.63°, -8.18°
What is the weather like in Roscommon in December?
In December, Roscommon is typically 47°F (8°C) during the day and 40°F (4°C) at night. The month brings about 4.0 in (100 mm) of precipitation in total. Snowfall averages about 0.7 in (17 mm) over the month.
- Average high47°F (8°C)
- Average low40°F (4°C)
- Precipitation4.0 in (100 mm)
- Clear or mostly clear days2
- Snowfall0.7 in (17 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)