Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 64190 — Kansas City, MO

ZIP code 64190 (Kansas City, Platte County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 12 and the first fall frost October 27.

Where ZIP 64190 is

tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 12
First frostOct 27
2012 zone6b

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Kansas City, MO…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Kansas City, MO

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 12median — 50% chance of a later frost
Safe for tender plantsApril 25only 10% chance of frost after
First fall frostOctober 27median — 10% chance by Oct 13
Growing season196 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 3 and returns around November 4.

From the NOAA station Leavenworth, KS — 4 miles away, elevation 869 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 64190

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 1 – Mar 15
SpinachSow outdoors · Mar 1 – Mar 22
Broccoli, cabbageStart indoors · Feb 1 – Feb 15
Broccoli, cabbageTransplant · Mar 22 – Apr 5
Onion setsPlant outdoors · Mar 15 – Mar 29
PotatoesPlant outdoors · Mar 22 – Apr 5
LettuceSow outdoors · Mar 15 – Mar 29
Carrots, beetsSow outdoors · Mar 22 – Apr 5
TomatoesStart indoors · Feb 15 – Mar 1
TomatoesTransplant · Apr 19 – May 3
Peppers, eggplantStart indoors · Feb 1 – Feb 15
Peppers, eggplantTransplant · Apr 26 – May 10
BeansSow outdoors · Apr 19 – May 3
Sweet cornSow outdoors · Apr 19 – May 3
Cucumbers, squashSow outdoors · Apr 19 – May 3
Fall lettuce, spinachSow outdoors · Sep 1 – Sep 15
GarlicPlant cloves · Oct 13 – Nov 17
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 12) and first fall frost (Oct 27) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 64190 came on Feb 25 — 21 days earlier than the 1991–2020 average (Mar 18).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 6b in Missouri

525 plants native to the lower 48 states, recorded in Missouri, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 70

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Fbald cypress130 ft · blooms mid spring · medium shade tolerance · to −18 °F

Shrubs 83

alternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °FAmerican hornbeam30 ft · blooms mid spring · low shade tolerance · to −34 °F

Wildflowers & perennials 192

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °F

Grasses 157

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fblister sedge3 ft · blooms late spring · medium shade tolerance · to −38 °F

Vines 12

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °Fheartleaf peppervine2 ft · blooms late spring · low shade tolerance · to −8 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Kansas City, MO.

Soil in Kansas City, MO

The soil mapped at the center of ZIP 64190 is Knox — silty clay loam, well drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH6.5neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Knox silty clay loam, 14 to 20 percent slopes, severely eroded.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 64190; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kansas City, MO

Summer high91 °Faverage high, July
Winter low21 °Faverage low, January
Hot days46days a year at 90 °F or more
Freezing nights105nights a year at 32 °F or less
Growing degree days4,281base 50 °F — the season’s usable heat
Longest day14 h 57 mindaylight on June 21
Shortest day9 h 23 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation41.3 inper year, rain and melted snow
Snowfall19 inper year; 19 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 39 °F, low 21 °F 39°21° JanFebruary: average high 45 °F, low 24 °F 45°24° FebMarch: average high 57 °F, low 34 °F 57°34° MarApril: average high 67 °F, low 44 °F 67°44° AprMay: average high 77 °F, low 55 °F 77°55° MayJune: average high 86 °F, low 65 °F 86°65° JunJuly: average high 91 °F, low 69 °F 91°69° JulAugust: average high 89 °F, low 68 °F 89°68° AugSeptember: average high 81 °F, low 58 °F 81°58° SepOctober: average high 68 °F, low 46 °F 68°46° OctNovember: average high 54 °F, low 34 °F 54°34° NovDecember: average high 43 °F, low 25 °F 43°25° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 1.05 in precipitation, 4.8 in snowfall 1.1❄5 JanFebruary: 1.58 in precipitation, 5.6 in snowfall 1.6❄6 FebMarch: 2.36 in precipitation, 1.5 in snowfall 2.4❄2 MarApril: 4.11 in precipitation 4.1 AprMay: 5.24 in precipitation 5.2 MayJune: 5.49 in precipitation 5.5 JunJuly: 4.32 in precipitation 4.3 JulAugust: 5.30 in precipitation 5.3 AugSeptember: 4.58 in precipitation 4.6 SepOctober: 3.56 in precipitation, 0.4 in snowfall 3.6 OctNovember: 1.98 in precipitation, 1 in snowfall 2.0❄1 NovDecember: 1.70 in precipitation, 5.5 in snowfall 1.7❄6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Leavenworth, KS (4 mi away); precipitation: Leavenworth, KS (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

641686b
Kansas City, MO · <1 mi
641956b
Kansas City, MO · <1 mi
640796b
Platte City, MO · 3 mi
660276b
Fort Leavenworth, KS · 4 mi
640286b
Farley, MO · 4 mi
660436b
Lansing, KS · 7 mi
641536b
Kansas City, MO · 8 mi
660486b
Leavenworth, KS · 8 mi

All 71 ZIP codes in Kansas City → · Missouri planting zones →

Questions about 64190

What planting zone is ZIP code 64190?

ZIP code 64190 (Kansas City, MO) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Kansas City, MO?

The median last spring frost (32 °F) near 64190 is April 12; after April 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Leavenworth station.

When is the first frost in Kansas City, MO?

The median first fall frost near 64190 is October 27, giving a median frost-free growing season of 196 days.

When should I plant tomatoes in 64190?

Start tomato seeds indoors around Feb 15 – Mar 1 and set transplants outside around Apr 19 – May 3, one to three weeks after the median last frost.

How much rain and snow does 64190 get?

About 41.3 inches of precipitation a year and 19 inches of snowfall (NOAA 1991–2020 normals, Leavenworth station).

How hot do summers get in Kansas City, MO?

The average high peaks at 91 °F in July, with about 46 days a year at 90 °F or more.

What kind of soil does 64190 have?

The USDA soil survey maps Knox at the center of ZIP 64190: silty clay loam, well drained, pH about 6.5 (neutral).

Did spring come early in Kansas City, MO in 2026?

Spring leaf-out near 64190 came on Feb 25 in 2026, 21 days earlier than the 1991–2020 average (Mar 18), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kansas City, MO?

Intermediate onions: the longest day near 64190 is 14 h 57 min, so day-neutral types bulb best; long-day varieties may not bulb fully.