Climate almanac
Boulder
Colorado, United States · 40.01°, -105.27°
What is the weather like in Boulder in July?
In July, Boulder is typically 83°F (28°C) during the day and 55°F (13°C) at night. The month brings about 2.9 in (73 mm) of precipitation in total.
- Average high83°F (28°C)
- Average low55°F (13°C)
- Precipitation2.9 in (73 mm)
- Clear or mostly clear days15
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)