USDA Hardiness Zone 6a
Average annual extreme minimum temperature: -10 to -5°F
Ohio Valley, mid-Atlantic, mountain west. Long growing season for veggies.
1,103 US cities in Zone 6a
AK
CO
- Antonito 43.8°F
- Aspen 40.6°F
- Basalt 42.8°F
- Bayfield 43.7°F
- City of Creede 40.9°F
- Crestone 43.6°F
- Del Norte 43.9°F
- Fairplay 36.6°F
- Hayden 43.7°F
- Hillrose 48.3°F
- La Jara 43.8°F
- Limon 46.8°F
- Manassa 43.8°F
- Meeker 44.8°F
- Moffat 43.6°F
- Oak Creek 40.2°F
- Ridgway 44.1°F
- Rifle 46.4°F
- Romeo 43.8°F
- Saguache 43.9°F
- San Luis 43.9°F
- Sanford 43.8°F
- Silver Cliff 42.8°F
- Snowmass Village 42.8°F
- Vail 37.9°F
- Westcliffe 42.8°F
- Yampa 40.2°F
IA
- Adair 48.4°F
- Adel 48.1°F
- Albert City 46.4°F
- Alexander 47.0°F
- Algona 45.9°F
- Allison 46.7°F
- Alta 47.1°F
- Alvord 46.0°F
- Anamosa 47.0°F
- Anita 49.3°F
- Archer 45.3°F
- Arion 47.4°F
- Arnolds Park 46.0°F
- Arthur 47.5°F
- Aspinwall 47.4°F
- Atlantic 49.3°F
- Auburn 46.6°F
- Audubon 47.0°F
- Aurelia 46.7°F
- Aurora 45.4°F
- Ayrshire 47.3°F
- Badger 46.5°F
- Bagley 47.8°F
- Barnum 46.5°F
- Battle Creek 46.9°F
- Bayard 48.4°F
- Beaver 48.1°F
- Belmond 47.0°F
- Blencoe 48.1°F
- Bode 46.2°F
- Boone 48.1°F
- Boxholm 48.1°F
- Boyden 44.9°F
- Bradgate 46.2°F
- Brandon 46.0°F
- Brayton 49.3°F
- Britt 45.5°F
- Bronson 48.0°F
- Brunsville 46.9°F
- Buck Grove 47.4°F
- Burt 45.9°F
- Callender 46.5°F
- Calumet 48.2°F
- Cambridge 48.0°F
- Casey 48.4°F
- Castalia 46.0°F
- Center Point 46.0°F
- Central City 46.5°F
- Charles City 46.5°F
- Charter Oak 47.2°F
- Chatsworth 46.7°F
- Cherokee 46.7°F
- Churdan 47.8°F
- Clare 46.5°F
- Clarion 47.0°F
- Clarksville 46.7°F
- Clear Lake 45.6°F
- Cleghorn 46.7°F
- Clermont 46.0°F
- Coggon 46.5°F
- Collins 47.8°F
- Colo 47.8°F
- Colwell 46.5°F
- Correctionville 46.8°F
- Coulter 46.6°F
- Craig 46.9°F
- Cresco 45.0°F
- Crystal Lake 45.5°F
- Curlew 47.3°F
- Cushing 46.8°F
- Cylinder 47.3°F