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USNA - USDA Plant Hardiness Zone Map: North-East US
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
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 2a through 7b represented here.
 
USDA Hardiness Zones and Average Annual Minimum Temperature Range
|
1 |
Below -50 F
|
Below -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; Victorville, California |
|
10b |
35
to 40 F
|
4.4
to 1.7 C |
Miami,
Florida; Coral Gables, Florida |
|
11 |
above
40 F
|
above
4.5 C |
Honolulu,
Hawaii; Mazatlan, Mexico |
|