Climate almanac
Chelmsford
Massachusetts, United States · 42.60°, -71.37°
What is the weather like in Chelmsford in July?
In July, Chelmsford is typically 84°F (29°C) during the day and 67°F (19°C) at night. The month brings about 3.9 in (100 mm) of precipitation in total.
- Average high84°F (29°C)
- Average low67°F (19°C)
- Precipitation3.9 in (100 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)