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USDA Plant Hardiness Zone Map
North-Midwest US:  Iowa, Minnesota, Montana, Nebraska, North Dakota, South Dakota, Wisconsin, Wyoming

[Back to the Zone Map Page] [Back to Main Page]

Check the color of the section in your area on the map with the color key below. Zones 2b through 6a represented here.

  north-midwest area

USDA Hardiness Zones and Average Annual Minimum
Temperature Range

 USDA Zone Temperature Range            Example Cities

-45 to -40 F  (-40.0 to -42.7 C)

Unalakleet, Alaska
Pinecreek, Minnesota

-40 to -35 F  (-37.3 to -39.9 C)

International Falls, Minnesota
St. Michael, Alaska

-35 to -30 F  (-34.5 to -37.2 C)

Tomahawk, Wisconsin
Sidney, Montana

-30 to -25 F  (-31.7 to -34.4 C)

Minneapolis/St. Paul, Minnesota
Lewistown, Montana

-25 to -20 F  (-28.9 to -31.6 C)

Northwood, Iowa

-20 to -15 F  (-26.2 to -28.8 C)

Des Moines, Iowa

-15 to -10 F  (-23.4 to -26.1 C)

Columbia, Missouri
Mansfield, Pennsylvania

-10 to -5 F  (-20.6 to -23.3 C)

St. Louis, Missouri
Lebanon, Pennsylvania

Listed by zone: Names of representative plants listed under the coldest zones in which they normally succeed.
Listed alphabetically: Cold hardiness ratings (zones) for selected woody plants.

Data based on USDA Miscellaneous Publication No. 1475.  Issued January 1990, U.S. National Arboretum, Agricultural Research Service, U.S. Department of Agriculture, Washington, DC 20002.


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Updated on October 20, 2018