Auvergne-Rhône-Alpes, ARA, France plant hardiness zones (gardening zones)
Plant hardiness zones (winter frost zones or gardening zones) range for Auvergne-Rhône-Alpes (ARA), France is:
by the USDA scale.
• coldest zone's winter temperature: −23.3 … −20.6 °C
• warmest zone's winter temperature: −9.4 … −6.7 °C