Allamakee County, Iowa, IA, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Allamakee County, Iowa (IA), USA is:

• 4b
• 5a

by the USDA scale.

• coldest zone's winter temperature: −25 … -20 °F

• warmest zone's winter temperature: −20 … -15 °F

Cities of Allamakee County, Iowa (IA), USA

• DorchesterUSDA hardiness zone: 4b
• Harpers FerryUSDA hardiness zone: 5a
• LansingUSDA hardiness zone: 5a
• New AlbinUSDA hardiness zone: 5a
• PostvilleUSDA hardiness zone: 4b
• WatervilleUSDA hardiness zone: 5a
• WaukonUSDA hardiness zone: 5a