USDA Hardiness Zone 4b
Average annual extreme minimum temperature: -25 to -20°F
Upper Midwest and northern New England. Heating-degree-day intensive.
58 US cities in Zone 4b
AK
CO
- Crested Butte 34.2°F
- Gunnison 37.7°F
- Silverton 34.7°F
MN
- Alvarado 39.1°F
- Aurora 36.4°F
- Babbitt 36.7°F
- Badger 36.6°F
- Bagley 38.8°F
- Baudette 40.0°F
- Biwabik 36.4°F
- Blackduck 37.7°F
- Clearbrook 38.8°F
- Erskine 38.8°F
- Fosston 38.8°F
- Gonvick 38.8°F
- Goodridge 37.7°F
- Grygla 37.7°F
- Gully 38.8°F
- Hoyt Lakes 36.4°F
- International Falls 37.4°F
- Lengby 38.8°F
- Littlefork 37.8°F
- McIntosh 38.8°F
- Oklee 38.8°F
- Orr 35.7°F
- Oslo 39.1°F
- Ranier 37.4°F
- Roosevelt 36.6°F
- Roseau 36.6°F
- Tenstrike 37.7°F
- Tower 36.9°F
- Trail 38.8°F
- Warren 39.1°F
- Warroad 36.6°F
- Williams 37.1°F
- Winger 38.8°F