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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.
USDA Hardiness Zones and Average Annual Minimum
Temperature Range
|
USDA Zone |
Temperature
Range |
Example Cities |
|
2b |
-45
to -40 F (-40.0 to -42.7 C) |
Unalakleet, Alaska
Pinecreek, Minnesota |
|
3a |
-40
to -35 F (-37.3 to -39.9 C) |
International Falls, Minnesota
St. Michael, Alaska |
|
3b |
-35
to -30 F (-34.5 to -37.2 C) |
Tomahawk, Wisconsin
Sidney, Montana |
|
4a |
-30
to -25 F (-31.7 to -34.4 C) |
Minneapolis/St. Paul,
Minnesota
Lewistown, Montana |
|
4b |
-25
to -20 F (-28.9 to -31.6 C) |
Northwood,
Iowa
Nebraska |
|
5a |
-20
to -15 F (-26.2 to -28.8 C) |
Des
Moines, Iowa
Illinois |
|
5b |
-15
to -10 F (-23.4 to -26.1 C) |
Columbia,
Missouri
Mansfield, Pennsylvania |
|
6a |
-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. |