March in Passaic averages a daily high of 10.6°C with nights around 0.9°C. Expect roughly 10.9 wet days totalling 98.2mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Passaic is May–June.
Based on TETERBORO AIRPORT, NJ US (6.1km), 1995–2024. 29 years of March data.