April in Passaic averages a daily high of 16.9°C with nights around 6°C. Expect roughly 11.2 wet days totalling 107.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Passaic is May–June.
Based on TETERBORO AIRPORT, NJ US (6.1km), 1995–2024. 30 years of April data.