Climate almanac
Groton
Connecticut, United States · 41.35°, -72.08°
What is the weather like in Groton in October?
In October, Groton is typically 63°F (17°C) during the day and 56°F (13°C) at night. The month brings about 5.1 in (129 mm) of precipitation in total.
- Average high63°F (17°C)
- Average low56°F (13°C)
- Precipitation5.1 in (129 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)