June in Trenton averages a daily high of 27.4°C with nights around 16.3°C. Expect roughly 11.7 wet days totalling 108mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Trenton is May–June.
Based on TRENTON MERCER AIRPORT, NJ US (9.1km), 1995–2024. 27 years of June data.