Climate almanac
Rochester
New Hampshire, United States · 43.30°, -70.98°
What is the weather like in Rochester in September?
In September, Rochester is typically 73°F (23°C) during the day and 56°F (14°C) at night. The month brings about 2.9 in (75 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low56°F (14°C)
- Precipitation2.9 in (75 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)