What plant hardiness zone is Hooper Bay

Hooper Bay is located at Unorganized Borough, Alaska (AK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Hooper Bay is 4b by the USDA scale.

Coldest zone's winter temperature is −25 … -20 °F.

Plants of 4b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4b USDA.

Hooper Bay, Alaska @ wikipedia.