May in Norfolk County averages a daily high of 20.3°C with nights around 7.2°C. Expect roughly 12 wet days totalling 77.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Norfolk County is May–September.
Based on DELHI CS, ON CA (14.1km), 1995–2024. 26 years of May data.