Climate almanac
Merrimac
Massachusetts, United States · 42.83°, -71.00°
What is the weather like in Merrimac in July?
In July, Merrimac is typically 81°F (27°C) during the day and 67°F (20°C) at night. The month brings about 4.0 in (101 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low67°F (20°C)
- Precipitation4.0 in (101 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)