March in Manhattan averages a daily high of 13.9°C with nights around -0.3°C. Expect roughly 8.2 wet days totalling 55.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Manhattan is September–October.
Based on MANHATTAN, KS US (1.7km), 1995–2024. 29 years of March data.