March in Belleville averages a daily high of 4.9°C with nights around -4.7°C. Expect roughly 11.3 wet days totalling 57.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Belleville is May–September.
Based on BELLEVILLE, ON CA (2.3km), 1995–2024. 27 years of March data.