Climate almanac
Summit
Washington, United States · 47.16°, -122.36°
What is the weather like in Summit in January?
In January, Summit is typically 46°F (8°C) during the day and 38°F (3°C) at night. The month brings about 7.9 in (201 mm) of precipitation in total. Snowfall averages about 4.4 in (112 mm) over the month.
- Average high46°F (8°C)
- Average low38°F (3°C)
- Precipitation7.9 in (201 mm)
- Clear or mostly clear days3
- Snowfall4.4 in (112 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)