May in Dearborn averages a daily high of 21.8°C with nights around 9.7°C. Expect roughly 12 wet days totalling 92.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Dearborn is May–June.
Based on DEARBORN NUMBER 2, MI US (2.7km), 1995–2024. 17 years of May data.