March in Parsippany averages a daily high of 9.7°C with nights around -1.1°C. Expect roughly 10 wet days totalling 89mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Parsippany is May–June.
Based on BOONTON 1 SE, NJ US (4.5km), 1995–2024. 23 years of March data.