April in Plymouth averages a daily high of 13.6°C with nights around 1.7°C. Expect roughly 11.7 wet days totalling 85.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Plymouth is May–September.
Based on NEW HOPE, MN US (6km), 1995–2024. 29 years of April data.