Rio Blanco County, Colorado, CO, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Rio Blanco County, Colorado (CO), USA is:

• 5a

by the USDA scale.

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

Cities of Rio Blanco County, Colorado (CO), USA

• MeekerUSDA hardiness zone: 5a
• RangelyUSDA hardiness zone: 5a