Climate almanac
Rosslyn
Virginia, United States · 38.90°, -77.07°
What is the weather like in Rosslyn in January?
In January, Rosslyn is typically 44°F (7°C) during the day and 30°F (-1°C) at night. The month brings about 3.4 in (86 mm) of precipitation in total. Snowfall averages about 6.1 in (155 mm) over the month.
- Average high44°F (7°C)
- Average low30°F (-1°C)
- Precipitation3.4 in (86 mm)
- Clear or mostly clear days10
- Snowfall6.1 in (155 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)