Climate almanac
Johnstown
Colorado, United States · 40.34°, -104.91°
What is the weather like in Johnstown in January?
In January, Johnstown is typically 42°F (6°C) during the day and 20°F (-7°C) at night. The month brings about 1.0 in (25 mm) of precipitation in total. Snowfall averages about 6.3 in (159 mm) over the month.
- Average high42°F (6°C)
- Average low20°F (-7°C)
- Precipitation1.0 in (25 mm)
- Clear or mostly clear days13
- Snowfall6.3 in (159 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)