May in Levittown averages a daily high of 20.3°C with nights around 11.1°C. Expect roughly 11.8 wet days totalling 75.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Levittown is August–October.
Based on FARMINGDALE REPUBLIC AIRPORT, NY US (8.3km), 1995–2024. 24 years of May data.