Grand Forks County, North Dakota, ND, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Grand Forks County, North Dakota (ND), USA is:

• 3b
• 4a

by the USDA scale.

• coldest zone's winter temperature: −35 … -30 °F

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

Cities of Grand Forks County, North Dakota (ND), USA

• ArvillaUSDA hardiness zone: 4a
• EmeradoUSDA hardiness zone: 4a
• GilbyUSDA hardiness zone: 4a
• Grand ForksUSDA hardiness zone: 4a
• Grand Forks AFBUSDA hardiness zone: 4a
• InksterUSDA hardiness zone: 4a
• LarimoreUSDA hardiness zone: 4a
• ManvelUSDA hardiness zone: 4a
• McCannaUSDA hardiness zone: 4a
• MekinockUSDA hardiness zone: 4a
• NiagaraUSDA hardiness zone: 3b
• NorthwoodUSDA hardiness zone: 4a
• ThompsonUSDA hardiness zone: 4a