April in Nashua averages a daily high of 14.7°C with nights around 1.4°C. Expect roughly 11.3 wet days totalling 113.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nashua is May–June.
Based on NASHUA 2 NNW, NH US (2.9km), 1995–2024. 28 years of April data.