Montreal vs Boston

Montreal and Boston are closely matched in October. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Montreal is on the cooler side at 13°C, requiring warmer clothing. Boston is cooler at 8°C.

For travelers who prioritize dry weather, Boston is the stronger choice in October. Montreal receives 4 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Montreal reaches an average high of 13°C (55°F) and drops to 6°C (43°F) at night during October. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Boston averages 8°C (46°F) for the high and -4°C (25°F) for the low, with a daily range of 12°C. There is a notable 5°C gap between the two cities, so expect a very different feel.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in October.

Montreal receives approximately 112 mm of rainfall across 12 rain days during October. You can expect rain roughly every other day.

Boston sees 40 mm over 3 rain days. That makes Boston the drier option by 9 rain days and 72 mm of total precipitation.

Both cities share similar humidity levels at 65%.