Sudbury

What is the climate like in Sudbury?

The best time to visit Sudbury is typically June – September, with trip comfort peaking in August (7.2/10). Sudbury is warmest in August, when daily highs average 72°F (22°C), and coolest in January, when lows fall to about 36°F (2°C). The wettest month is typically October and the driest is April; the year sees roughly 27 in (697 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in August (7.2/10)
• Warmest monthAugust — average high 72°F (22°C)
• Coolest monthJanuary — average low 36°F (2°C)
• Wettest monthOctober (2.8 in (71 mm))
• Driest monthApril (1.7 in (43 mm))
• Annual precipitation27 in (697 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromWattisham, 18 km away (1959-2026)