1990 Florida USDA Plant Hardiness Zone Map

Historical Map — 1990 USDA Data: For current planting zone information view the 2023 Florida USDA Hardiness Zone Map .

The 1990 USDA Plant Hardiness Zone Map for Florida was the official USDA zone reference for over two decades. It was based on average annual extreme minimum winter temperature data collected from 1974 to 1986. Use the table below to compare 1990 zones to the revised 2012 zones and the current 2023 zones.

1990 Florida Hardiness Zone Map

Click on the map for zone information. Use the legend icon (lower right) to view the color key. Use the layers control (upper right) to toggle county boundaries and state border.

List of 1990 Hardiness Zones for Locations in Florida

Location1990 Hardiness Zone2012 Zone2023 Zone
Alafaya9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Altamonte Springs9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Apollo Beach9a — 20°F to 25°F10a — 30°F to 35°F10a — 30°F to 35°F
Apopka9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Auburndale9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Aventura10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Bartow9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Bayonet Point9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Bayshore Gardens9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Belle Glade9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Bellview8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Boca Raton10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Bonita Springs10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Boynton Beach10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Bradenton9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Bradfordville8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Brandon9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Brent8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Brownsville10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Buenaventura Lakes9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Cape Canaveral9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Cape Coral10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Carrollwood9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Casselberry9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Citrus Park9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Clearwater9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Clermont9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Cocoa9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Coconut Creek10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Cooper City10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Coral Gables10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Coral Springs10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Coral Terrace10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Country Club10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Country Walk10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Crestview8a — 10°F to 15°F8b — 15°F to 20°F8b — 15°F to 20°F
Cutler Bay10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Dania Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Davie10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Daytona Beach9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
DeBary9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Deerfield Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
DeLand9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Delray Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Deltona9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Doral10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Dunedin9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
East Lake9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Edgewater9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Englewood9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Ensley8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Estero10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Eustis9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Ferry Pass8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Fish Hawk9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Florida Ridge9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Fort Lauderdale10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Fort Myers9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Fort Pierce9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Fort Walton Beach8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Fountainebleau10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Fruit Cove9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Fruitville9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Gainesville8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Gibsonton9a — 20°F to 25°F10a — 30°F to 35°F10a — 30°F to 35°F
Glenvar Heights10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Golden Gate10a — 30°F to 35°F10a — 30°F to 35°F10a — 30°F to 35°F
Golden Glades10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Groveland9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Haines City9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Hallandale Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Hialeah10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Hialeah Gardens10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Holiday9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Hollywood10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Homestead10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Hunters Creek9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Immokalee10a — 30°F to 35°F10a — 30°F to 35°F10a — 30°F to 35°F
Iona10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Ives Estates10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Jacksonville9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Jacksonville Beach9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Jasmine Estates9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Jupiter9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Kendale Lakes10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Kendall10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Key West10a — 30°F to 35°F11b — 45°F to 50°F11b — 45°F to 50°F
Keystone9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Kissimmee9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Lady Lake9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Lake Magdalene9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Lake Mary9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Lake Wales9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Lakeland9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Lakeside9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Lakewood Ranch9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Land O' Lakes9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Largo9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Lauderdale Lakes10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Lauderhill10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Lealman9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Leesburg9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Lehigh Acres9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Leisure City10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Longwood9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Lutz9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Lynn Haven8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Maitland9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Margate10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Marion Oaks9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Meadow Woods9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Melbourne9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Merritt Island9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Miami10a — 30°F to 35°F11a — 40°F to 45°F11a — 40°F to 45°F
Miami Beach10a — 30°F to 35°F11a — 40°F to 45°F11a — 40°F to 45°F
Miami Gardens10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Miami Lakes10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Miramar10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Mount Dora9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Myrtle Grove8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Naples10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Navarre8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
New Port Richey9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
New Smyrna Beach9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Niceville8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
North Fort Myers9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
North Lauderdale10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
North Miami10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
North Miami Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
North Port9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Northdale9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Oak Ridge9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Oakland Park10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Ocala8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Ocoee9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Ojus10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Opa-locka10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Orlando9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Ormond Beach9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Oviedo9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Pace8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Palm Bay9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Palm Beach Gardens10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Palm City9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Palm Coast9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Palm Harbor9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Palm Springs10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Palm Valley9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Palmetto Bay10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Panama City8b — 15°F to 20°F9a — 20°F to 25°F9b — 25°F to 30°F
Panama City Beach8b — 15°F to 20°F9a — 20°F to 25°F9b — 25°F to 30°F
Parkland10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Pembroke Pines10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Pensacola8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Pine Hills9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Pinecrest10a — 30°F to 35°F10b — 35°F to 40°F11a — 40°F to 45°F
Pinellas Park9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Pinewood10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Plant City9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Plantation10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Poinciana9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Pompano Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Port Charlotte9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Port Orange9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Princeton10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Punta Gorda9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Riverview9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Riviera Beach10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Royal Palm Beach10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Ruskin9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Safety Harbor9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
San Carlos Park10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Sanford9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Sarasota9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Sebastian9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Seminole9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Silver Springs Shores9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
South Bradenton9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
South Miami Heights10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
South Venice9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Southchase9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Spring Hill9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Stuart9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
Sun City Center9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Sunny Isles Beach10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Sunrise10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Sunset10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Sweetwater10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Tallahassee8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Tamarac10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Tamiami10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Tampa9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Tarpon Springs9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Tavares9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Temple Terrace9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Tequesta9b — 25°F to 30°F10a — 30°F to 35°F10b — 35°F to 40°F
The Acreage10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
The Crossings10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
The Hammocks10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
The Villages9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Thonotosassa9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Three Lakes10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
Titusville9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Town 'n' Country9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Union Park9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Upper Grand Lagoon8b — 15°F to 20°F9a — 20°F to 25°F9b — 25°F to 30°F
Valrico9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
Venice9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Vero Beach9b — 25°F to 30°F10a — 30°F to 35°F10a — 30°F to 35°F
Warrington8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Wekiwa Springs9b — 25°F to 30°F9b — 25°F to 30°F9b — 25°F to 30°F
Wellington10a — 30°F to 35°F10a — 30°F to 35°F10b — 35°F to 40°F
Wesley Chapel9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F
West Little River10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
West Melbourne9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
West Palm Beach10a — 30°F to 35°F10b — 35°F to 40°F10b — 35°F to 40°F
West Park10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
West Pensacola8b — 15°F to 20°F9a — 20°F to 25°F9a — 20°F to 25°F
Westchase9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Westchester10b — 35°F to 40°F10b — 35°F to 40°F11a — 40°F to 45°F
Weston10b — 35°F to 40°F10b — 35°F to 40°F10b — 35°F to 40°F
Wildwood9a — 20°F to 25°F9a — 20°F to 25°F9b — 25°F to 30°F
Winter Garden9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Winter Haven9a — 20°F to 25°F9b — 25°F to 30°F10a — 30°F to 35°F
Winter Park9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Winter Springs9b — 25°F to 30°F9b — 25°F to 30°F10a — 30°F to 35°F
Wright8b — 15°F to 20°F8b — 15°F to 20°F9a — 20°F to 25°F
Zephyrhills9a — 20°F to 25°F9b — 25°F to 30°F9b — 25°F to 30°F

1990 Hardiness Zone Maps for Neighboring States

Data Source & Methodology

The 1990 USDA Plant Hardiness Zone Map was produced by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) in collaboration with the American Horticultural Society. It served as the official US planting zone reference from 1990 until the 2012 revision.

  • Publisher: USDA Agricultural Research Service (ARS)
  • Year Published: 1990
  • Climate Data Period: 1974–1986
  • Zone Basis: Average annual extreme minimum winter temperature
  • Number of Zones: 11 zones (1–11), each divided into a and b half-zones

Official source: USDA Plant Hardiness Zone Map — planthardiness.ars.usda.gov

This interactive map presentation is provided by PlantMaps. The underlying hardiness zone boundary data is sourced from the USDA Agricultural Research Service. Zone assignments for individual cities and towns are derived from PlantMaps climate data.

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