New Hampshire USDA Plant Hardiness Zone Map
New Hampshire USDA Plant Hardiness Zone Map Source: USDA

New Hampshire experiences a humid continental climate, with warm, humid summers, and long, cold, and snowy winters, ranging from USDA Plant Hardiness Zones 3b through 6a. Temperatures can vary per different areas of the state so get to know which zone your city is located in so that you can address and avoid potential issues before they become problematic.

The USDA zones map is a useful system for determining what plants will survive and grow in certain areas ofNew Hampshire.

Understanding how these hardiness zones work means you can choose the right planting time, and optimize growing for your climate.

Precipitation is fairly evenly distributed all year.

The climate of the southeastern portion is moderated by the Atlantic Ocean and averages relatively milder winters (for New Hampshire), while the northern and interior portions experience colder temperatures and lower humidity.

Winters are cold and snowy throughout the state, and especially severe in the northern and mountainous areas.

Average annual snowfall ranges from 60 inches (150 cm) to over 100 inches (250 cm) across the state.