Ohio is unreasonably cold for having palm trees. Ohio has a moist mainland atmosphere with a few zones in the south that have a sticky subtropical atmosphere. Summer is sweltering and damp with normal July temperatures going from 72 to 76°F (22 to 24 °C). Winter is cool to cold with normal January temperatures running from 25 to 31°F (- 3°C to - 1°C). Ohio gets by and large around 24 in (61 cm) to 56.3 in (143 cm) of snow every year. Once in a while, Ohio gets twisters, huge snow storms, and every 5-7 years or so, an earth tremor.
The hottest temperature at any point recorded was 113°F (45°C) and the most minimal was – 39°F (– 39°C). Ohio USDA zones ranges from 5a to 7a.
Palm Trees in Ohio
Ohio has very little area of zone 7 within the state, if any at all. Every other zone is too cold to even think about growing palm trees effectively. To add a tropical feel, you will need to have your palm trees be placed in pots, and moved inside during the winter months. Here are some extraordinary indoor/outdoor palms:
Areca Palm Tree – Zones 9a – 11 (20 to 25 F)
Chinese Fan Palm Tree – Zones 8a – 11 (10 to 15 F)
Lady Palm Tree – Zones 8b – 11 (15 to 20 F)