Climate almanac
Rochester
New Hampshire, United States · 43.30°, -70.98°
What is the climate like in Rochester?
The best time to visit Rochester is typically August – September, with trip comfort peaking in September (6.9/10). Rochester is warmest in July, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 21°F (-6°C). The wettest month is typically December and the driest is September; the year sees roughly 46 in (1172 mm) of precipitation.
- Best time to visitAugust – September — comfort peaks in September (6.9/10)
- Warmest monthJuly — average high 82°F (28°C)
- Coolest monthJanuary — average low 21°F (-6°C)
- Wettest monthDecember (5.1 in (129 mm))
- Driest monthSeptember (2.9 in (75 mm))
- Annual precipitation46 in (1172 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromDurham, 18 km away (1893-2026)