December in Brossard averages a daily high of -0.2°C with nights around -8.1°C. Expect roughly 10.8 wet days totalling 80.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Brossard is May–September.
Based on LAPRAIRIE, QC CA (7.8km), 1995–2024. 11 years of December data.