USNA – USDA Plant Hardiness Zone Map: North Midwest USA
Includes: Iowa, Minnesota, Montana, Nebraska, North Dakota
South Dakota, Wisconsin, Wyoming
The 2003 US National Arboretum “Web Version” of the 1990 USDA Plant Hardiness Zone Map
Check the color of the section in your area of the map with the color key below.
Zones 2b through 6a represented here.

North Midwest USA Hardiness Zones

Hardiness Zones Key
USDA Hardiness Zones and Average Annual Minimum Temperature Range |
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Fairbanks, Alaska; Resolute, Northwest Territories (Canada) |
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Prudhoe Bay, Alaska; Flin Flon, Manitoba (Canada) |
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Unalakleet, Alaska; Pinecreek, Minnesota |
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International Falls, Minnesota; St. Michael, Alaska |
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Tomahawk, Wisconsin; Sidney, Montana |
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Minneapolis/St.Paul, Minnesota; Lewistown, Montana |
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Northwood, Iowa; Nebraska |
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Des Moines, Iowa; Illinois |
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Columbia, Missouri; Mansfield, Pennsylvania |
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St. Louis, Missouri; Lebanon, Pennsylvania |
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McMinnville, Tennessee; Branson, Missouri |
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Oklahoma City, Oklahoma; South Boston, Virginia |
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Little Rock, Arkansas; Griffin, Georgia |
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Tifton, Georgia; Dallas, Texas |
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Austin, Texas; Gainesville, Florida |
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Houston, Texas; St. Augustine, Florida |
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Brownsville, Texas; Fort Pierce, Florida |
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Naples, Florida; Victorville, California |
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Miami,Florida; Coral Gables, Florida |
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Honolulu, Hawaii; Mazatlan, Mexico |
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