Custer County, Colorado, CO, USA plant hardiness zones (gardening zones)

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

• 5a
• 5b
• 6a

by the USDA scale.

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

• warmest zone's winter temperature: −10 … -5 °F

Cities of Custer County, Colorado (CO), USA

• San IsabelUSDA hardiness zone: 5b
• Silver CliffUSDA hardiness zone: 5a
• WestcliffeUSDA hardiness zone: 5a
• WetmoreUSDA hardiness zone: 6a