December in La Haute-Saint-Charles averages a daily high of -3°C with nights around -11°C. Expect roughly 16.1 wet days totalling 97.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit La Haute-Saint-Charles is June–September.
Based on QUEBEC JEAN LESAGE INTERNATIONAL, QC CA (10.1km), 1995–2024. 28 years of December data.