Climate almanac
Brownsburg-Chatham
Quebec, Canada · 45.68°, -74.42°
What is the climate like in Brownsburg-Chatham?
The best time to visit Brownsburg-Chatham is typically September, the year's most comfortable month (6.4/10). Brownsburg-Chatham is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 8°F (-13°C). The wettest month is typically October and the driest is September; the year sees roughly 49 in (1257 mm) of precipitation.
- Best time to visitSeptember — the year's comfort peak (6.4/10)
- Warmest monthJuly — average high 79°F (26°C)
- Coolest monthJanuary — average low 8°F (-13°C)
- Wettest monthOctober (5.0 in (127 mm))
- Driest monthSeptember (3.2 in (81 mm))
- Annual precipitation49 in (1257 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromLachute, 7 km away (1963-2024)