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USDA Plant Hardiness Zone Map
North-East US
Connecticut, Delaware, District of Columbia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia
Check the color of the section in your area of the map with the color key below.
Zones 2a through 7b represented here.
 
USDA Hardiness Zones and Average Annual Minimum Temperature Range
| USDA
Zone |
Temperature Range |
Example
Cities |
| 1 |
Below
-50 F
(-45.6 C) |
Fairbanks,
Alaska
Resolute,
Northwest Territories (Canada) |
| 2a |
-50
to -45 F
(-42.8 to -45.5 C) |
Prudhoe
Bay, Alaska
Flin
Flon, Manitoba (Canada) |
| 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 |
| 6b |
-5
to 0 F
(-17.8 to -20.5 C) |
McMinnville,
Tennessee
Branson,
Missouri |
| 7a |
0
to 5 F
(-15.0 to -17.7 C) |
Oklahoma
City, Oklahoma
South
Boston, Virginia |
| 7b |
5
to 10 F
(-12.3 to -14.9 C) |
Little
Rock, Arkansas
Griffin,
Georgia |
| 8a |
10
to 15 F
(-9.5 to -12.2 C) |
Tifton,
Georgia
Dallas,
Texas |
| 8b |
15
to 20 F
(-6.7 to -9.4 C) |
Austin,
Texas
Gainesville,
Florida |
| 9a |
20
to 25 F
(-3.9 to -6.6 C) |
Houston,
Texas
St.
Augustine, Florida |
| 9b |
25
to 30 F
(-1.2 to -3.8 C) |
Brownsville,
Texas
Fort
Pierce, Florida |
| 10a |
30
to 35 F
(1.6 to -1.1 C) |
Naples,
Florida
Barstow,
California |
| 10b |
35
to 40 F
(4.4 to 1.7 C) |
Miami,
Florida
Coral
Gables, Florida |
| 11 |
above
40 F
(4.5 C) |
Honolulu,
Hawaii
Mazatlan,
Mexico |
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.
Go to the USDA Hardiness Zone Map
USDA
Miscellaneous Publication No. 1475. Issued January 1990
Authored
by Henry M. Cathey while Director, U.S. National Arboretum
Edited,
formatted and prepared for the US National Arboretum web site by Ramon
Jordan, March 1998
U.S.
National Arboretum, Agricultural Research Service, U.S. Department of Agriculture,
Washington, DC 20002.
Updated and edited,
by Yankee Gardener, February 2001
Back to the USDA Hardiness Zone Map Introduction Page
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