|
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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
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 |
Back to Hardiness
Zone Map
|
