Climate almanac
Hermiston
Oregon, United States · 45.84°, -119.29°
What is the weather like in Hermiston in December?
In December, Hermiston is typically 43°F (6°C) during the day and 32°F (0°C) at night. The month brings about 1.9 in (48 mm) of precipitation in total. Snowfall averages about 2.9 in (74 mm) over the month.
- Average high43°F (6°C)
- Average low32°F (0°C)
- Precipitation1.9 in (48 mm)
- Clear or mostly clear days3
- Snowfall2.9 in (74 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)