January in Trois-Rivières averages a daily high of -5.5°C with nights around -13.9°C. Expect roughly 12.3 wet days totalling 61.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Trois-Rivières is June–September.
Based on TROIS RIVIERES, QC CA (2.4km), 1995–2024. 30 years of January data.