January in Niagara Falls averages a daily high of 0.4°C with nights around -8.6°C. Expect roughly 18.1 wet days totalling 68mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Niagara Falls is May–September.
Based on NIAGARA FALLS, NY US (7.8km), 1995–2024. 17 years of January data.