May in Irondequoit averages a daily high of 20.5°C with nights around 8.7°C. Expect roughly 12.2 wet days totalling 72mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Irondequoit is May–September.
Based on FREDERICK DOUGLASS GREATER ROCHESTER INTERNATIONAL AIRPORT, NY US (13.2km), 1995–2024. 30 years of May data.