Ontonagon County, Michigan, MI, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Ontonagon County, Michigan (MI), USA is:

• 4a
• 4b
• 5a

by the USDA scale.

• coldest zone's winter temperature: −30 … -25 °F

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

Cities of Ontonagon County, Michigan (MI), USA

• BerglandUSDA hardiness zone: 4a
• Bruce CrossingUSDA hardiness zone: 4a
• EwenUSDA hardiness zone: 4a
• GreenlandUSDA hardiness zone: 4b
• Mass CityUSDA hardiness zone: 4b
• MatchwoodUSDA hardiness zone: 4a
• OntonagonUSDA hardiness zone: 5a
• RocklandUSDA hardiness zone: 4b
• Trout CreekUSDA hardiness zone: 4a
• White PineUSDA hardiness zone: 4b