USDA hardiness zone 6b
In zone 6b the average coldest winter night reaches -5°F to 0°F. Plants labeled for zone 6 (or a colder zone) can survive the winter outdoors here. 558 U.S. cities with 10,000+ residents are in this zone — the largest are listed below.
| City | State | Zone | Avg. last frost | Avg. first frost |
|---|---|---|---|---|
| Chicago | IL | 6b | Apr 10 | Nov 5 |
| Columbus | OH | 6b | Apr 20 | Oct 24 |
| Indianapolis | IN | 6b | Apr 20 | Oct 21 |
| Detroit | MI | 6b | Apr 21 | Oct 31 |
| Kansas City | MO | 6b | Apr 4 | Nov 2 |
| Cincinnati | OH | 6b | Apr 16 | Oct 25 |
| Pittsburgh | PA | 6b | Apr 24 | Oct 27 |
| Meads | KY | 6b | Apr 22 | Oct 23 |
| Toledo | OH | 6b | Apr 20 | Oct 27 |
| Buffalo | NY | 6b | Apr 24 | Oct 26 |
| Rochester | NY | 6b | Apr 24 | Oct 25 |
| Akron | OH | 6b | Apr 24 | Oct 28 |
| Overland Park | KS | 6b | Apr 10 | Oct 29 |
| Springfield | MA | 6b | May 3 | Oct 8 |
| Kansas City | KS | 6b | Apr 4 | Nov 2 |
| Dayton | OH | 6b | Apr 18 | Oct 25 |
| Olathe | KS | 6b | Apr 10 | Oct 29 |
| Warren | MI | 6b | Apr 21 | Oct 31 |
| Sterling Heights | MI | 6b | Apr 30 | Oct 24 |
| Columbia | MO | 6b | Apr 5 | Oct 31 |
| Topeka | KS | 6b | Apr 16 | Oct 22 |
| Amherst | NY | 6b | Apr 24 | Oct 26 |
| Hartford | CT | 6b | Apr 17 | Oct 26 |
| Independence | MO | 6b | Apr 10 | Oct 27 |
| Lowell | MA | 6b | Apr 30 | Oct 10 |
| Cambridge | MA | 6b | Apr 4 | Nov 9 |
| Waterbury | CT | 6b | Apr 26 | Oct 16 |
| Clinton Township | MI | 6b | Apr 30 | Oct 24 |
| Dorchester | MA | 6b | Apr 19 | Oct 23 |
| Brockton | MA | 6b | Apr 22 | Oct 19 |
| Dearborn | MI | 6b | Apr 27 | Oct 25 |
| Lee's Summit | MO | 6b | Apr 13 | Oct 26 |
| Livonia | MI | 6b | May 1 | Oct 15 |
| Lawrence | KS | 6b | Apr 12 | Oct 28 |
| Newton | MA | 6b | Apr 19 | Oct 23 |
| Santa Fe | NM | 6b | May 14 | Oct 6 |
| Bend | OR | 6b | Jun 6 | Sep 20 |
| Canton | MI | 6b | Apr 24 | Oct 24 |
| O'Fallon | MO | 6b | Apr 9 | Oct 26 |
| Danbury | CT | 6b | Apr 20 | Oct 20 |
| Bloomington | IN | 6b | Apr 15 | Oct 26 |
| Troy | MI | 6b | Apr 26 | Oct 22 |
| Westland | MI | 6b | Apr 20 | Oct 27 |
| Farmington Hills | MI | 6b | May 1 | Oct 17 |
| Lawrence | MA | 6b | Apr 13 | Oct 28 |
| Parma | OH | 6b | Apr 20 | Nov 3 |
| Scranton | PA | 6b | Apr 23 | Oct 20 |
| Cheektowaga | NY | 6b | Apr 24 | Oct 26 |
| Shelby | MI | 6b | Apr 26 | Oct 22 |
| Southfield | MI | 6b | May 1 | Oct 17 |
| New Britain | CT | 6b | Apr 17 | Oct 26 |
| Canton | OH | 6b | Apr 24 | Oct 26 |
| Framingham | MA | 6b | Apr 26 | Oct 12 |
| Framingham Center | MA | 6b | Apr 26 | Oct 12 |
| Shawnee | KS | 6b | Apr 4 | Nov 2 |
| Lorain | OH | 6b | Apr 24 | Oct 24 |
| Waltham | MA | 6b | Apr 28 | Oct 10 |
| West Hartford | CT | 6b | Apr 17 | Oct 26 |
| Hamilton | OH | 6b | Apr 22 | Oct 18 |
| Taylor | MI | 6b | Apr 20 | Oct 27 |
| Malden | MA | 6b | Apr 4 | Nov 9 |
| Bristol | CT | 6b | Apr 25 | Oct 18 |
| Meriden | CT | 6b | Apr 26 | Oct 16 |
| Hamden | CT | 6b | Apr 18 | Oct 26 |
| Saint Clair Shores | MI | 6b | Apr 29 | Oct 22 |
| Royal Oak | MI | 6b | Apr 21 | Oct 31 |
| Brookline | MA | 6b | Apr 19 | Oct 23 |
| Medford | MA | 6b | Apr 4 | Nov 9 |
| Taunton | MA | 6b | Apr 22 | Oct 19 |
| Dearborn Heights | MI | 6b | May 1 | Oct 15 |
| Kettering | OH | 6b | Apr 18 | Oct 25 |
| Blue Springs | MO | 6b | Apr 7 | Oct 29 |
| Elyria | OH | 6b | Apr 22 | Nov 1 |
| Saint Peters | MO | 6b | Apr 9 | Oct 26 |
| Peabody | MA | 6b | Apr 25 | Oct 20 |
| Lenexa | KS | 6b | Apr 10 | Oct 29 |
| Methuen | MA | 6b | Apr 13 | Oct 28 |
| Irondequoit | NY | 6b | Apr 24 | Oct 25 |
| East Hartford | CT | 6b | Apr 17 | Oct 26 |
| South Peabody | MA | 6b | Apr 25 | Oct 20 |
| Redford | MI | 6b | May 1 | Oct 15 |
| Cuyahoga Falls | OH | 6b | Apr 30 | Oct 21 |
| Niagara Falls | NY | 6b | Apr 26 | Oct 25 |
| Middletown | OH | 6b | Apr 24 | Oct 19 |
| Salina | KS | 6b | Apr 18 | Oct 23 |
| Roseville | MI | 6b | Apr 29 | Oct 22 |
| Twin Falls | ID | 6b | Apr 30 | Oct 9 |
| Middletown | CT | 6b | Apr 26 | Oct 16 |
| Columbus | IN | 6b | Apr 11 | Oct 25 |
| Beavercreek | OH | 6b | Apr 18 | Oct 25 |
| Brighton | MA | 6b | Apr 19 | Oct 23 |
| Altoona | PA | 6b | Apr 25 | Oct 21 |
| Enfield | CT | 6b | Apr 21 | Oct 16 |
| Dublin | OH | 6b | Apr 22 | Oct 23 |
| Cleveland Heights | OH | 6b | Apr 8 | Nov 12 |
| West Seneca | NY | 6b | Apr 24 | Oct 26 |
| Strongsville | OH | 6b | Apr 20 | Nov 3 |
| Attleboro | MA | 6b | Apr 27 | Oct 15 |
| Southington | CT | 6b | Apr 26 | Oct 16 |
| Arlington | MA | 6b | Apr 25 | Oct 17 |
| Fairfield | OH | 6b | Apr 19 | Oct 22 |
| Jefferson City | MO | 6b | Apr 8 | Oct 31 |
| Henrietta | NY | 6b | Apr 24 | Oct 25 |
| State College | PA | 6b | Apr 20 | Oct 26 |
| Hutchinson | KS | 6b | Apr 18 | Oct 21 |
| Woonsocket | RI | 6b | Apr 22 | Oct 19 |
| Shelton | CT | 6b | Apr 25 | Oct 17 |
| Beverly | MA | 6b | Apr 24 | Oct 17 |
| Findlay | OH | 6b | Apr 22 | Oct 24 |
| Covington | KY | 6b | Apr 16 | Oct 25 |
| Beverly Cove | MA | 6b | May 4 | Oct 12 |
| Billerica | MA | 6b | Apr 27 | Oct 13 |
| Norwich | CT | 6b | Apr 14 | Oct 24 |
| Marlborough | MA | 6b | May 2 | Oct 6 |
| Woburn | MA | 6b | Apr 25 | Oct 17 |
| Grove City | OH | 6b | Apr 23 | Oct 19 |
| Muskegon | MI | 6b | Apr 30 | Oct 19 |
| Westerville | OH | 6b | Apr 22 | Oct 24 |
| Huber Heights | OH | 6b | Apr 16 | Oct 28 |
| Delaware | OH | 6b | Apr 19 | Oct 26 |
| Braintree | MA | 6b | Apr 25 | Oct 22 |
| Reynoldsburg | OH | 6b | Apr 18 | Oct 27 |
| Lincoln Park | MI | 6b | May 1 | Oct 15 |
| Brighton | NY | 6b | Apr 24 | Oct 25 |
| Mattapan | MA | 6b | Apr 19 | Oct 23 |
| Leavenworth | KS | 6b | Apr 12 | Oct 27 |
| Wentzville | MO | 6b | Apr 10 | Oct 26 |
| Coventry | RI | 6b | Apr 22 | Oct 20 |
| Upper Arlington | OH | 6b | Apr 20 | Oct 24 |
| Cumberland | RI | 6b | Apr 22 | Oct 19 |
| Stow | OH | 6b | Apr 30 | Oct 21 |
| Brunswick | OH | 6b | Apr 20 | Nov 3 |
| Gahanna | OH | 6b | Apr 18 | Oct 27 |
| Leawood | KS | 6b | Apr 10 | Oct 29 |
| Chelmsford | MA | 6b | Apr 30 | Oct 10 |
| North Providence | RI | 6b | Apr 11 | Oct 30 |
| Holland | MI | 6b | Apr 28 | Oct 21 |
| Hilliard | OH | 6b | Apr 22 | Oct 23 |
| Fairborn | OH | 6b | Apr 24 | Oct 17 |
| Kiryas Joel | NY | 6b | Apr 10 | Nov 1 |
| Pullman | WA | 6b | May 6 | Sep 29 |
| Mount Lebanon | PA | 6b | Apr 18 | Oct 28 |
| Mason | OH | 6b | Apr 22 | Oct 18 |
| Eastpointe | MI | 6b | Apr 21 | Oct 31 |
| North Ridgeville | OH | 6b | Apr 22 | Nov 1 |
| Georgetown | KY | 6b | Apr 13 | Oct 28 |
| Natick | MA | 6b | Apr 26 | Oct 12 |
| Massillon | OH | 6b | Apr 24 | Oct 26 |
| Florence | KY | 6b | Apr 18 | Oct 25 |
| Bethel Park | PA | 6b | Apr 18 | Oct 28 |
| Randolph | MA | 6b | Apr 18 | Oct 26 |
| North Olmsted | OH | 6b | Apr 20 | Nov 3 |
| Watertown | MA | 6b | Apr 19 | Oct 23 |
| Glastonbury | CT | 6b | Apr 17 | Oct 26 |
| Hyde Park | MA | 6b | Apr 18 | Oct 26 |
| Naugatuck | CT | 6b | Apr 18 | Oct 26 |
| Lexington | MA | 6b | Apr 28 | Oct 10 |
| Bowling Green | OH | 6b | Apr 22 | Oct 25 |
| Parkersburg | WV | 6b | Apr 14 | Oct 30 |
| North Tonawanda | NY | 6b | May 6 | Oct 15 |
| Franklin | MA | 6b | Apr 30 | Oct 9 |
| Manchester | CT | 6b | Apr 17 | Oct 26 |
| Newington | CT | 6b | Apr 17 | Oct 26 |
| Post Falls | ID | 6b | Apr 22 | Oct 18 |
| West Roxbury | MA | 6b | Apr 19 | Oct 23 |
| Poughkeepsie | NY | 6b | Apr 21 | Oct 21 |
| North Royalton | OH | 6b | Apr 20 | Nov 3 |
| Madison Heights | MI | 6b | Apr 21 | Oct 31 |
| Cedar City | UT | 6b | May 4 | Oct 13 |
| West Warwick | RI | 6b | Apr 22 | Oct 20 |
| Ashmont | MA | 6b | Apr 19 | Oct 23 |
| Kent | OH | 6b | Apr 21 | Oct 29 |
| Oak Park | MI | 6b | Apr 27 | Oct 25 |
| Cheshire | CT | 6b | Apr 26 | Oct 16 |
| Raytown | MO | 6b | Apr 10 | Oct 27 |
| Port Huron | MI | 6b | Apr 19 | Nov 3 |
| Tewksbury | MA | 6b | Apr 30 | Oct 10 |
| Southgate | MI | 6b | Apr 20 | Oct 27 |
| Johnston | RI | 6b | Apr 11 | Oct 30 |
| Williamsport | PA | 6b | Apr 25 | Oct 24 |
| Needham | MA | 6b | Apr 26 | Oct 12 |
| Allston | MA | 6b | Apr 19 | Oct 23 |
| Windsor | CT | 6b | Apr 21 | Oct 16 |
| Agawam | MA | 6b | May 3 | Oct 8 |
| Redmond | OR | 6b | Jun 9 | Sep 14 |
| Norwood | MA | 6b | Apr 25 | Oct 9 |
| Frankfort | KY | 6b | Apr 15 | Oct 24 |
| Newburgh | NY | 6b | Apr 10 | Nov 1 |
| North Andover | MA | 6b | Apr 21 | Oct 21 |
| Monroeville | PA | 6b | Apr 22 | Oct 25 |
| Cranberry Township | PA | 6b | Apr 8 | Nov 8 |
| Garfield Heights | OH | 6b | Apr 8 | Nov 12 |
| Melrose | MA | 6b | Apr 25 | Oct 17 |
| Wellesley | MA | 6b | Apr 26 | Oct 12 |
| West Springfield | MA | 6b | May 3 | Oct 8 |
| Dodge City | KS | 6b | Apr 21 | Oct 20 |
| Middletown | NY | 6b | Apr 21 | Oct 22 |
| Roslindale | MA | 6b | Apr 19 | Oct 23 |
| Wheeling | WV | 6b | Apr 20 | Oct 29 |
| Shaker Heights | OH | 6b | Apr 8 | Nov 12 |
| Plum | PA | 6b | Apr 16 | Nov 1 |
| Allen Park | MI | 6b | May 1 | Oct 15 |
| Eagle Mountain | UT | 6b | Jun 2 | Sep 16 |
| Garden City | KS | 6b | Apr 28 | Oct 17 |
| Milton | MA | 6b | Apr 18 | Oct 26 |
| West Milford | NJ | 6b | Apr 19 | Oct 23 |
| Garden City | MI | 6b | May 1 | Oct 15 |
| Stoughton | MA | 6b | Apr 25 | Oct 9 |
| Gladstone | MO | 6b | Apr 4 | Nov 2 |
| Independence | KY | 6b | Apr 18 | Oct 25 |
| Wethersfield | CT | 6b | Apr 17 | Oct 26 |
| Saugus | MA | 6b | Apr 25 | Oct 17 |
| Danvers | MA | 6b | Apr 24 | Oct 17 |
| Mansfield City | CT | 6b | Apr 19 | Oct 22 |
| Barberton | OH | 6b | Apr 24 | Oct 28 |
| Xenia | OH | 6b | Apr 18 | Oct 24 |
| Green | OH | 6b | Apr 24 | Oct 26 |
| Randolph | NJ | 6b | Apr 17 | Oct 23 |
| Zanesville | OH | 6b | Apr 26 | Oct 19 |
| Grandview | MO | 6b | Apr 7 | Oct 29 |
| Sandusky | OH | 6b | Apr 10 | Nov 5 |
| Wyandotte | MI | 6b | May 1 | Oct 15 |
| Moscow | ID | 6b | Apr 29 | Oct 2 |
| Milford | MA | 6b | Apr 30 | Oct 9 |
| Athens | OH | 6b | Apr 25 | Oct 23 |
| Farmington | CT | 6b | Apr 25 | Oct 18 |
| Riverside | OH | 6b | Apr 18 | Oct 25 |
| Wakefield | MA | 6b | Apr 25 | Oct 17 |
| East Amherst | NY | 6b | Apr 24 | Oct 26 |
| Hazleton | PA | 6b | Apr 30 | Oct 22 |
| Reading | MA | 6b | Apr 25 | Oct 17 |
| Belmont | MA | 6b | Apr 19 | Oct 23 |
| Dedham | MA | 6b | Apr 18 | Oct 26 |
| Inkster | MI | 6b | May 1 | Oct 15 |
| Emporia | KS | 6b | Apr 15 | Oct 23 |
| Junction City | KS | 6b | Apr 12 | Oct 26 |
| Franklin | IN | 6b | Apr 20 | Oct 19 |
| Burlington | MA | 6b | Apr 25 | Oct 17 |
| South Windsor | CT | 6b | Apr 17 | Oct 26 |
| Norton Shores | MI | 6b | Apr 30 | Oct 19 |
| Trotwood | OH | 6b | Apr 18 | Oct 25 |
| North Haven | CT | 6b | Apr 18 | Oct 26 |
| Centerville | OH | 6b | Apr 17 | Oct 26 |
| Chestnut Hill | MA | 6b | Apr 19 | Oct 23 |
| Easton | MA | 6b | Apr 27 | Oct 15 |
| Kingston | NY | 6b | May 14 | Sep 28 |
| Romulus | MI | 6b | Apr 20 | Oct 27 |
| Mansfield | MA | 6b | Apr 27 | Oct 15 |
| Middleborough | MA | 6b | Apr 23 | Oct 16 |
| Windham | CT | 6b | Apr 28 | Oct 13 |
| Marysville | OH | 6b | Apr 19 | Oct 26 |
| Maple Heights | OH | 6b | Apr 8 | Nov 12 |
| Avon | OH | 6b | Apr 22 | Nov 1 |
| Hudson | OH | 6b | Apr 30 | Oct 21 |
| New Castle | PA | 6b | Apr 30 | Oct 23 |
| Wilmington | MA | 6b | Apr 25 | Oct 17 |
| Hamtramck | MI | 6b | Apr 21 | Oct 31 |
| Prairie Village | KS | 6b | Apr 4 | Nov 2 |
| Smithfield | RI | 6b | Apr 22 | Oct 19 |
| South Euclid | OH | 6b | Apr 8 | Nov 12 |
| Chillicothe | OH | 6b | Apr 20 | Oct 22 |
| South Lake Tahoe | CA | 6b | Jun 5 | Oct 9 |
| Canton | MA | 6b | Apr 25 | Oct 9 |
| Lincoln | RI | 6b | Apr 22 | Oct 19 |
| Allison Park | PA | 6b | Apr 16 | Nov 1 |
| Bloomfield | CT | 6b | Apr 17 | Oct 26 |
| Sedalia | MO | 6b | Apr 18 | Oct 22 |
| Stoneham | MA | 6b | Apr 25 | Oct 17 |
| Perrysburg | OH | 6b | Apr 20 | Oct 27 |
| Klamath Falls | OR | 6b | Jun 9 | Sep 18 |
| Winchester | MA | 6b | Apr 25 | Oct 17 |
| Hays | KS | 6b | Apr 19 | Oct 22 |
| Nixa | MO | 6b | Apr 15 | Oct 23 |
| Acton | MA | 6b | May 2 | Oct 6 |
| Gardner | KS | 6b | Apr 13 | Oct 24 |
| Birmingham | MI | 6b | Apr 26 | Oct 22 |
| Grand Island | NY | 6b | Apr 26 | Oct 25 |
| Liberal | KS | 6b | Apr 20 | Oct 24 |
| Lockport | NY | 6b | Apr 26 | Oct 26 |
| Lebanon | OH | 6b | Apr 24 | Oct 19 |
| Raymore | MO | 6b | Apr 13 | Oct 26 |
| Parma Heights | OH | 6b | Apr 20 | Nov 3 |
| Montville Center | CT | 6b | Apr 14 | Oct 24 |
| Ferndale | MI | 6b | Apr 21 | Oct 31 |
| Murrysville | PA | 6b | Apr 22 | Oct 25 |
| Oregon | OH | 6b | Apr 20 | Oct 27 |
| Monroe | MI | 6b | Apr 23 | Oct 23 |
| West Mifflin | PA | 6b | May 2 | Oct 20 |
| Miamisburg | OH | 6b | Apr 17 | Oct 26 |
| Rolla | MO | 6b | Apr 5 | Nov 1 |
| Johnstown | PA | 6b | May 17 | Oct 2 |
| Warrensburg | MO | 6b | Apr 14 | Oct 21 |
| Norwood | OH | 6b | Apr 16 | Oct 25 |
| Southbury | CT | 6b | Apr 25 | Oct 17 |
| Baldwin | PA | 6b | Apr 18 | Oct 28 |
| Norton | MA | 6b | Apr 27 | Oct 15 |
| Pickerington | OH | 6b | Apr 23 | Oct 19 |
| Sparta | NJ | 6b | Apr 25 | Oct 19 |
| Seymour | IN | 6b | Apr 16 | Oct 21 |
| McKeesport | PA | 6b | May 2 | Oct 20 |