May in Gastonia averages a daily high of 26.6°C with nights around 14.4°C. Expect roughly 9.1 wet days totalling 94.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Gastonia is April–May.
Based on GASTONIA, NC US (4km), 1995–2024. 30 years of May data.