Bolton

What is the climate like in Bolton?

The best time to visit Bolton is typically July – September, with trip comfort peaking in September (7.0/10). Bolton is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 16°F (-9°C). The wettest month is typically June and the driest is November; the year sees roughly 36 in (922 mm) of precipitation.

• Best time to visitJuly – September — comfort peaks in September (7.0/10)
• Warmest monthJuly — average high 80°F (27°C)
• Coolest monthJanuary — average low 16°F (-9°C)
• Wettest monthJune (3.9 in (99 mm))
• Driest monthNovember (2.4 in (60 mm))
• Annual precipitation36 in (922 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromToronto North York, 24 km away (1994-2024)