USDA Hardiness Zone 3b
Average annual extreme minimum temperature: -35 to -30°F
Far-north climates. Limited to extremely cold-hardy plants.
10 US cities in Zone 3b
AK
- Anderson 27.3°F
- Bettles 23.9°F
- Eagle 26.1°F
- Galena 26.0°F
- Koyukuk 26.0°F
- North Pole 26.5°F
- Ruby 26.0°F
- Tanana 25.5°F
- Utqiaġvik 13.7°F
- Wainwright 14.8°F