Grafton Climate Graph - New Hampshire Climate Chart
Climate summaryWhat is the average weather in Grafton, New Hampshire?
Grafton experiences a humid continental climate, marked by very strong seasonal contrasts due to its inland location. Summers are warm, while winters are very cold. The area is fairly wet, with precipitation spread relatively evenly throughout the year, though summer is the wettest season and winter is the driest.
Based on climate normals · 1991–2020 Grafton weather averages