May in Oklahoma City averages a daily high of 26.5°C with nights around 14.9°C. Expect roughly 9.9 wet days totalling 133.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Oklahoma City is March–May.
Based on OKLAHOMA CITY WILL ROGERS WORLD AIRPORT, OK US (11.6km), 1995–2024. 30 years of May data.