New Hampshire is too cold for palm trees. New Hampshire experiences a humid continental climate with cold snowy winters and warm humid summers. Southeastern part of the state is influenced by Atlantic Ocean. The average July temperature is 70°F (21°C). The average January temperature is around 21°F (–6°C). Annually state gets anywhere from 60- 100 inches (150-(250 cm) of snow across the state.
The warmest temperature ever recorded was 106°F (41°C) and the lowest was –46°F (–43°C). New Hampshire gets occasionally effected by hurricanes, tropical storms and blizzards. New Hampshire USDA hardiness zones range from 3a to 6a.
New Hampshire USDA Zones
Growing Palm Trees in New Hampshire
There are some palm trees that can tolerate cold down -10F, but only for a short period of time and the palm needs to be mature enough. In reality, the state of New Hampshire is too cold to grow palm trees. You palm trees indoors in the container and take them outside during summer. That way you will have palm trees in your garden for a few months out of a year. Some great indoor palms are:
- Areca Palm Tree – Zones 9a – 11 (20 to 25 F)
- Chinese Fan Palm Tree – Zones 8a – 11 (10 to 15 F)
- Kentia Palm Tree – Zones 9b – 11 (25 to 30 F)
- Lady Palm Tree – Zones 8b – 11 (15 to 20 F)
Major Cities in New Hampshire
Manchester – Hardiness Zone 4b
Nashua – Hardiness Zone 5a
Find your hardiness zone