What Hardiness Zone Is Missouri?

Q: What hardiness zone is Missouri?

Missouri is in USDA hardiness zones 5b–8a on the 2023 USDA Plant Hardiness Zone Map. Zone 6b is the most common, covering 46% of Missouri's ZIP codes, and zone 7a covers 27%. Enter your ZIP code for your exact zone.

Q: What does zone 6b mean?

Zone 6b means the average annual extreme minimum temperature, the coldest night of a typical winter, is −5°F to 0°F (−21°C to −18°C). Perennials, shrubs and trees rated for zone 6b or colder should survive winter there.

Q: What is the coldest hardiness zone in Missouri?

Zone 5b is the coldest zone mapped in Missouri, found around Grant City, and zone 8a is the warmest.

Q: Did Missouri's hardiness zones change in 2023?

The USDA released a new Plant Hardiness Zone Map in November 2023, based on 1991–2020 temperatures instead of 1976–2005. About half of the United States shifted half a zone warmer. Check your ZIP code here, because plant tags and older books may still list your 2012 zone.

Q: When should I plant in zone 6b?

Hardiness zones don't set planting dates; frost dates do. Inside zone 6b in Missouri, the median last spring frost varies from April 4 to April 27. Look up your local frost dates and plant tender crops such as tomatoes after the 10%-risk last-frost date.

USDA 2023 Plant Hardiness Zone Map · 1,144 ZIP codes · Data updated 2026-10-28

Quick answer

Missouri spans USDA hardiness zones 5b–8a on the 2023 Plant Hardiness Zone Map. The most common zone is 6b, covering 46% of Missouri's ZIP codes, followed by zone 7a (27%). Zone 6b means the coldest night of an average winter reaches −5°F to 0°F (−21°C to −18°C). Enter your ZIP code for your exact zone.

Missouri hardiness zones by share of ZIP codes

Zone 5b3% · 39 ZIPs

Zone 6a19% · 216 ZIPs

Zone 6b46% · 521 ZIPs

Zone 7a27% · 310 ZIPs

Zone 7b5% · 52 ZIPs

Zone 8a<1% · 6 ZIPs

What the zones mean for Missouri gardeners

Coldest and warmest towns: among towns with NOAA weather stations, Grant City (1,130 ft) is in zone 5b, while Kennett Radio Kboa (270 ft) is in zone 7b. That is a difference of about 20°F in the coldest night of a typical winter.
Same zone, different frost dates: within zone 6b, the median last spring frost ranges from April 4 at Clarksville L&d 24 to April 27 at Rosebud, 23 days apart. Your zone tells you which perennials survive winter; your frost dates tell you when to plant.

Typical frost dates in each Missouri zone

Medians across NOAA weather stations in each zone. Colder zones usually have later spring frosts, but local terrain can shift the dates by weeks.

Zone	Last spring frost	First fall frost	Stations
5b	April 20	October 15	7
6a	April 16	October 20	34
6b	April 12	October 24	77
7a	April 9	October 26	41
7b	March 28	November 3	7

Hardiness zones for Missouri cities

Zones at the National Weather Service stations, mostly city airports, with their median frost dates.


Advance 1 S	7a	0°F to 5°F	360	Apr 7	Oct 27
Cape Girardeau Municipal Airport	7a	0°F to 5°F	336	Apr 5	Oct 25
Chillicothe 22 ENE	6a	−10°F to −5°F	833	Apr 15	Oct 20
Chillicothe Agri-sci	6a	−10°F to −5°F	769	Apr 15	Oct 21
Columbia Regional Airport	6b	−5°F to 0°F	893	Apr 7	Oct 29
Jefferson City Memorial Airport	6b	−5°F to 0°F	573	Apr 10	Oct 26
Joplin 24 N	7a	0°F to 5°F	952	Apr 6	Oct 24
Joplin Regional Airport	7a	0°F to 5°F	980	Apr 9	Oct 27
Kansas City Downtown Airport	6b	−5°F to 0°F	742	Apr 4	Nov 2
Kansas City Intl Airport	6b	−5°F to 0°F	1,005	Apr 13	Oct 24
Kirksville Regional Airport	6a	−10°F to −5°F	966	Apr 19	Oct 18
Lees Summit Municipal Airport	6b	−5°F to 0°F	997	Apr 7	Oct 29
Marshall	6b	−5°F to 0°F	790	Apr 10	Oct 24
Poplar Bluff Municipal Airport	7b	5°F to 10°F	327	Mar 31	Oct 31
Salem 10 W	6b	−5°F to 0°F	1,198	Apr 23	Oct 14
Sedalia Memorial Airport	6b	−5°F to 0°F	900	Apr 10	Oct 26
Springfield Wbo	6b	−5°F to 0°F	1,325	Apr 4	Oct 27
St Charles County Airport	6b	−5°F to 0°F	436	Apr 5	Oct 27
St Joseph Rosecrans Airport	6a	−10°F to −5°F	818	Apr 19	Oct 17
St Louis Lambert Intl Airport	7a	0°F to 5°F	531	Apr 2	Nov 4
St Louis Sprt Of S L Airport	6b	−5°F to 0°F	462	Apr 12	Oct 23
Tarkio	5b	−15°F to −10°F	1,045	Apr 19	Oct 15
Vichy Rolla National Airport	6b	−5°F to 0°F	1,127	Apr 12	Oct 25
West Plains Municipal Airport	7a	0°F to 5°F	1,223	Apr 8	Oct 25

Hardiness zones for 166 towns in Missouri

Each NOAA weather station is shown with the USDA zone of the nearest ZIP code (within 8 miles). Coldest night is the zone's range for the average annual extreme minimum temperature. Click a column to sort.

Filter by town


Advance 1 S	7a	0°F to 5°F	360	Apr 7	Oct 27
Albany	6a	−10°F to −5°F	875	Apr 17	Oct 21
Alton	7a	0°F to 5°F	813	Apr 17	Oct 21
Amity 4 NE	6a	−10°F to −5°F	974	Apr 19	Oct 19
Anderson	7a	0°F to 5°F	1,050	Apr 15	Oct 23
Anderson 3W	7a	0°F to 5°F	1,117	Apr 15	Oct 26
Appleton City	6b	−5°F to 0°F	866	Apr 7	Oct 29
Ash Grove 4S	6b	−5°F to 0°F	1,129	Apr 11	Oct 24
Bethany	6a	−10°F to −5°F	949	Apr 16	Oct 22
Billings 1SW	6b	−5°F to 0°F	1,310	Apr 15	Oct 23
Bolivar 1 NE	6b	−5°F to 0°F	987	Apr 14	Oct 23
Boonville	6b	−5°F to 0°F	752	Apr 12	Oct 25
Bowling Green 1 E	6a	−10°F to −5°F	895	Apr 13	Oct 23
Branson Airport	7a	0°F to 5°F	1,286	Apr 8	Nov 2
Brookfield	6a	−10°F to −5°F	767	Apr 14	Oct 23
Brunswick	6a	−10°F to −5°F	662	Apr 10	Oct 29
Buffalo 2N	6b	−5°F to 0°F	1,071	Apr 23	Oct 15
Butler 4W	6b	−5°F to 0°F	790	Apr 12	Oct 23
California	6b	−5°F to 0°F	879	Apr 11	Oct 25
Cameron	6a	−10°F to −5°F	1,010	Apr 15	Oct 24
Canton L&d 20	6a	−10°F to −5°F	490	Apr 11	Oct 23
Cape Girardeau Municipal Airport	7a	0°F to 5°F	336	Apr 5	Oct 25
Carrollton	6a	−10°F to −5°F	705	Apr 16	Oct 23
Carthage	7a	0°F to 5°F	978	Apr 4	Oct 27
Caruthersville	7b	5°F to 10°F	270	Mar 24	Nov 9
Cassville	7a	0°F to 5°F	1,376	Apr 14	Oct 26
Chillicothe 22 ENE	6a	−10°F to −5°F	833	Apr 15	Oct 20
Chillicothe 2S	6a	−10°F to −5°F	780	Apr 15	Oct 21
Chillicothe Agri-sci	6a	−10°F to −5°F	769	Apr 15	Oct 21
Clarksville L&d 24	6b	−5°F to 0°F	460	Apr 4	Nov 1
Clearwater Dam	7a	0°F to 5°F	660	Apr 9	Oct 26
Clinton	6b	−5°F to 0°F	770	Apr 17	Oct 21
Cole Camp 3NW	6b	−5°F to 0°F	1,000	Apr 13	Oct 23
Columbia Regional Airport	6b	−5°F to 0°F	893	Apr 7	Oct 29
Columbia U Of M	6b	−5°F to 0°F	770	Apr 5	Oct 31
Conception	6a	−10°F to −5°F	1,108	Apr 17	Oct 20
Cosby 2W	6a	−10°F to −5°F	910	Apr 17	Oct 19
Diamond 2W	7a	0°F to 5°F	1,070	Apr 18	Oct 22
Doniphan	7a	0°F to 5°F	289	Apr 12	Oct 26
Dora 3SE	7a	0°F to 5°F	966	Apr 9	Oct 23
Eldon	6b	−5°F to 0°F	924	Apr 7	Nov 1
Eldorado Springs	6b	−5°F to 0°F	915	Apr 8	Oct 29
Elm	6b	−5°F to 0°F	850	Apr 13	Oct 23
Elsberry 1 S	6b	−5°F to 0°F	475	Apr 20	Oct 20
Farmington	6b	−5°F to 0°F	900	Apr 13	Oct 21
Festus	7a	0°F to 5°F	600	Apr 9	Oct 26
Fort Leonard Wood	6b	−5°F to 0°F	1,123	Apr 14	Oct 24
Fredericktown	6b	−5°F to 0°F	760	Apr 21	Oct 16
Freedom	6b	−5°F to 0°F	805	Apr 11	Oct 21
Fulton	6b	−5°F to 0°F	770	Apr 10	Oct 24
Galena	7a	0°F to 5°F	1,027	Apr 16	Oct 21
Gallatin 1W	6a	−10°F to −5°F	921	Apr 19	Oct 21
Gentryville	7a	0°F to 5°F	1,100	Apr 14	Oct 25
Grant City	5b	−15°F to −10°F	1,130	Apr 24	Oct 14
Grant City 5WSW	5b	−15°F to −10°F	1,089	Apr 20	Oct 19
Green City 5N	5b	−15°F to −10°F	1,035	Apr 26	Oct 14
Grovespring 1NE	6b	−5°F to 0°F	1,388	Apr 15	Oct 22
Hamilton 2W	6a	−10°F to −5°F	900	Apr 23	Oct 17
Hannibal Wtr Wks	6a	−10°F to −5°F	712	Apr 10	Oct 27
Higginsville	6b	−5°F to 0°F	836	Apr 10	Oct 24
Houston	7a	0°F to 5°F	1,224	Apr 10	Oct 23
Iberia	6b	−5°F to 0°F	938	Apr 8	Oct 28
Independence	6b	−5°F to 0°F	985	Apr 10	Oct 27
Jackson	7a	0°F to 5°F	440	Apr 7	Oct 29
Jefferson City Memorial Airport	6b	−5°F to 0°F	573	Apr 10	Oct 26
Jefferson City Wtp	6b	−5°F to 0°F	650	Apr 8	Oct 31
Joplin 24 N	7a	0°F to 5°F	952	Apr 6	Oct 24
Joplin Regional Airport	7a	0°F to 5°F	980	Apr 9	Oct 27
Kansas City Downtown Airport	6b	−5°F to 0°F	742	Apr 4	Nov 2
Kansas City Intl Airport	6b	−5°F to 0°F	1,005	Apr 13	Oct 24
Kearney 3E	6a	−10°F to −5°F	840	Apr 19	Oct 17
Kennett Radio Kboa	7b	5°F to 10°F	270	Mar 31	Nov 1
Kirksville	6a	−10°F to −5°F	970	Apr 21	Oct 19
Kirksville Regional Airport	6a	−10°F to −5°F	966	Apr 19	Oct 18
Lakeside	7a	0°F to 5°F	590	Mar 31	Nov 3
Lamar 7N	7a	0°F to 5°F	963	Apr 9	Oct 27
Lebanon 2W	6b	−5°F to 0°F	1,246	Apr 17	Oct 21
Lees Summit Municipal Airport	6b	−5°F to 0°F	997	Apr 7	Oct 29
Lees Summit Reed Wr	6b	−5°F to 0°F	1,000	Apr 13	Oct 26
Lexington 3E	6a	−10°F to −5°F	825	Apr 8	Oct 25
Licking 4N	6b	−5°F to 0°F	1,180	Apr 20	Oct 19
Linneus 3SE	6a	−10°F to −5°F	814	Apr 16	Oct 20
Lockwood	7a	0°F to 5°F	1,077	Apr 11	Oct 25
Long Branch Rsvr	6a	−10°F to −5°F	820	Apr 8	Oct 28
Malden Municipal Airport	7b	5°F to 10°F	290	Mar 29	Nov 3
Mansfield	7a	0°F to 5°F	1,448	Apr 11	Oct 26
Marble Hill	6b	−5°F to 0°F	390	Apr 12	Oct 23
Marshall	6b	−5°F to 0°F	790	Apr 10	Oct 24
Marshfield 4 WSW	6b	−5°F to 0°F	1,414	Apr 13	Oct 24
Maryville 2E	5b	−15°F to −10°F	985	Apr 19	Oct 17
Memphis	6a	−10°F to −5°F	770	Apr 23	Oct 17
Mexico	6b	−5°F to 0°F	802	Apr 11	Oct 25
Moberly	6b	−5°F to 0°F	860	Apr 13	Oct 25
Monett 4SW	7a	0°F to 5°F	1,420	Apr 9	Oct 26
Monroe City	6a	−10°F to −5°F	741	Apr 12	Oct 22
Mount Vernon University Mo - SW Center	7a	0°F to 5°F	1,190	Apr 14	Oct 21
Mountain Grove 2 N	7a	0°F to 5°F	1,466	Apr 11	Oct 28
Neosho	7a	0°F to 5°F	1,033	Apr 7	Oct 31
Nevada Wtp	7a	0°F to 5°F	871	Apr 7	Oct 27
New Franklin 1W	6b	−5°F to 0°F	641	Apr 13	Oct 22
New Madrid	7b	5°F to 10°F	302	Mar 28	Nov 3
Oldfield	6b	−5°F to 0°F	1,240	Apr 26	Oct 13
Oregon	6a	−10°F to −5°F	1,058	Apr 16	Oct 20
Osceola	6b	−5°F to 0°F	744	Apr 16	Oct 24
Ozark	6b	−5°F to 0°F	1,134	Apr 15	Oct 23
Ozark Beach	7a	0°F to 5°F	834	Apr 6	Oct 31
Perryville Wtp	6b	−5°F to 0°F	502	Apr 19	Oct 20
Pleasant Hill WFO	6b	−5°F to 0°F	1,000	Apr 8	Oct 29
Pomme De Terre Dam	6b	−5°F to 0°F	907	Apr 7	Oct 28
Poplar Bluff	7a	0°F to 5°F	370	Mar 29	Nov 5
Poplar Bluff Municipal Airport	7b	5°F to 10°F	327	Mar 31	Oct 31
Portageville	7b	5°F to 10°F	280	Mar 25	Nov 7
Potosi 4 SW	6b	−5°F to 0°F	1,105	Apr 11	Oct 28
Princeton	5b	−15°F to −10°F	980	Apr 25	Oct 15
Richmond 3S	6a	−10°F to −5°F	700	Apr 19	Oct 18
Rolla Missouri S&t	6b	−5°F to 0°F	1,173	Apr 5	Nov 1
Rosebud	6b	−5°F to 0°F	730	Apr 27	Oct 13
Round Spring 2SW	6b	−5°F to 0°F	829	Apr 24	Oct 16
Salem	6b	−5°F to 0°F	1,205	Apr 17	Oct 18
Salem 10 W	6b	−5°F to 0°F	1,198	Apr 23	Oct 14
Salisbury	6a	−10°F to −5°F	730	Apr 12	Oct 22
Saverton L&d 22	6b	−5°F to 0°F	472	Apr 4	Nov 4
Sedalia Memorial Airport	6b	−5°F to 0°F	900	Apr 10	Oct 26
Sedalia Wtp	6b	−5°F to 0°F	780	Apr 18	Oct 22
Seligman	7a	0°F to 5°F	1,530	Apr 18	Oct 22
Shelbina	6a	−10°F to −5°F	747	Apr 21	Oct 17
Sikeston Pwr Station	7b	5°F to 10°F	310	Mar 26	Nov 6
Smithville Lake	6a	−10°F to −5°F	904	Apr 18	Oct 20
Spickard 7 W	6a	−10°F to −5°F	875	Apr 20	Oct 16
Springfield Wbo	6b	−5°F to 0°F	1,325	Apr 4	Oct 27
St Charles 7 SSW	7a	0°F to 5°F	450	Apr 4	Oct 29
St Charles County Airport	6b	−5°F to 0°F	436	Apr 5	Oct 27
St Charles Elm Point	6b	−5°F to 0°F	472	Apr 8	Oct 29
St Joseph Rosecrans Airport	6a	−10°F to −5°F	818	Apr 19	Oct 17
St Louis Lambert Intl Airport	7a	0°F to 5°F	531	Apr 2	Nov 4
St Louis Science Center	7a	0°F to 5°F	515	Apr 1	Nov 4
St Louis Sprt Of S L Airport	6b	−5°F to 0°F	462	Apr 12	Oct 23
St Peters 2 SE	6b	−5°F to 0°F	575	Apr 9	Oct 26
Steelville 2 N	6b	−5°F to 0°F	700	Apr 26	Oct 8
Steffenville	6a	−10°F to −5°F	705	Apr 17	Oct 19
Stockton Dam	7a	0°F to 5°F	922	Apr 6	Oct 30
Summersville 3 SE	7a	0°F to 5°F	1,236	Apr 7	Oct 27
Sweet Springs	6b	−5°F to 0°F	675	Apr 17	Oct 20
Tarkio	5b	−15°F to −10°F	1,045	Apr 19	Oct 15
Trenton	6a	−10°F to −5°F	837	Apr 16	Oct 20
Truman Dam & Rsvr	6b	−5°F to 0°F	754	Apr 7	Oct 30
Union	6b	−5°F to 0°F	540	Apr 11	Oct 23
Unionville	5b	−15°F to −10°F	1,060	Apr 17	Oct 22
Vandalia	6b	−5°F to 0°F	764	Apr 11	Oct 23
Versailles	6b	−5°F to 0°F	1,003	Apr 8	Oct 29
Vichy Rolla National Airport	6b	−5°F to 0°F	1,127	Apr 12	Oct 25
Vienna 2 WNW	6b	−5°F to 0°F	770	Apr 8	Oct 26
W Plains	7a	0°F to 5°F	1,105	Apr 16	Oct 21
Wappapello Dam	7a	0°F to 5°F	410	Apr 2	Nov 2
Warrensburg 4NW	6b	−5°F to 0°F	796	Apr 14	Oct 21
Warrenton 1 N	6b	−5°F to 0°F	827	Apr 14	Oct 23
Washburn 5 W	7a	0°F to 5°F	1,400	Apr 4	Oct 30
Washington	6b	−5°F to 0°F	487	Apr 8	Oct 25
Wasola 5N	7a	0°F to 5°F	1,226	Apr 10	Oct 27
Waverly	6b	−5°F to 0°F	800	Apr 6	Oct 30
Waynesville 2 W	6b	−5°F to 0°F	890	Apr 15	Oct 21
Weldon Spring NWS	6b	−5°F to 0°F	610	Apr 10	Oct 26
West Plains Municipal Airport	7a	0°F to 5°F	1,223	Apr 8	Oct 25
Windsor	6b	−5°F to 0°F	840	Apr 7	Oct 28
Windsor	6b	−5°F to 0°F	877	Apr 13	Oct 22
Winona 3 SW	6b	−5°F to 0°F	961	Apr 22	Oct 18

Frequently asked questions

What hardiness zone is Missouri?

Missouri is in USDA hardiness zones 5b–8a on the 2023 USDA Plant Hardiness Zone Map. Zone 6b is the most common, covering 46% of Missouri's ZIP codes, and zone 7a covers 27%. Enter your ZIP code for your exact zone.

What does zone 6b mean?

Zone 6b means the average annual extreme minimum temperature, the coldest night of a typical winter, is −5°F to 0°F (−21°C to −18°C). Perennials, shrubs and trees rated for zone 6b or colder should survive winter there.

What is the coldest hardiness zone in Missouri?

Zone 5b is the coldest zone mapped in Missouri, found around Grant City, and zone 8a is the warmest.

Did Missouri's hardiness zones change in 2023?

The USDA released a new Plant Hardiness Zone Map in November 2023, based on 1991–2020 temperatures instead of 1976–2005. About half of the United States shifted half a zone warmer. Check your ZIP code here, because plant tags and older books may still list your 2012 zone.

When should I plant in zone 6b?

Hardiness zones don't set planting dates; frost dates do. Inside zone 6b in Missouri, the median last spring frost varies from April 4 to April 27. Look up your local frost dates and plant tender crops such as tomatoes after the 10%-risk last-frost date.

Zone and frost dates: use both

Your hardiness zone answers one question: will this plant survive the winter here? Choose perennials, shrubs, trees and bulbs rated for your zone or a colder one. For vegetables and annuals, what matters is the length of the frost-free season. See Missouri frost dates by town, or get a planting calendar for your ZIP code with start-indoors, transplant and sowing dates for 30 crops.

Sources and method

Zones are from the USDA 2023 Plant Hardiness Zone Map ZIP-code files published by the PRISM Climate Group, Oregon State University, based on 1991–2020 minimum temperatures. ZIP codes are assigned to states by USPS prefix. Town zones use the ZIP code nearest each NOAA 1991–2020 Climate Normals station. This is an independent tool, not an official USDA site. Full methodology.