April in Joplin averages a daily high of 20.9°C with nights around 8.3°C. Expect roughly 10.5 wet days totalling 121.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Joplin is September–October.
Based on JOPLIN REGIONAL AIRPORT, MO US (7.7km), 1995–2024. 30 years of April data.