Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 64075 — Oak Grove, MO

ZIP code 64075 (Oak Grove, Jackson County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 13 and the first fall frost October 23.

Where ZIP 64075 is

Outlined: the ZIP code area · 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.

Zone6a−10 to −5 °F

Coldest night−23.3 to −20.6 °C

Last frostApr 13

First frostOct 23

2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Oak Grove, 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 Oak Grove, MO

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 13median — 50% chance of a later frost

Safe for tender plantsApril 29only 10% chance of frost after

First fall frostOctober 23median — 10% chance by Oct 9

Growing season191 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 2 and returns around November 1.

From the NOAA station Elm, MO — 11 miles away, elevation 850 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 64075

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 2 – Mar 16

SpinachSow outdoors · Mar 2 – Mar 23

Broccoli, cabbageStart indoors · Feb 2 – Feb 16

Broccoli, cabbageTransplant · Mar 23 – Apr 6

Onion setsPlant outdoors · Mar 16 – Mar 30

PotatoesPlant outdoors · Mar 23 – Apr 6

LettuceSow outdoors · Mar 16 – Mar 30

Carrots, beetsSow outdoors · Mar 23 – Apr 6

TomatoesStart indoors · Feb 16 – Mar 2

TomatoesTransplant · Apr 20 – May 4

Peppers, eggplantStart indoors · Feb 2 – Feb 16

Peppers, eggplantTransplant · Apr 27 – May 11

BeansSow outdoors · Apr 20 – May 4

Sweet cornSow outdoors · Apr 20 – May 4

Cucumbers, squashSow outdoors · Apr 20 – May 4

Fall lettuce, spinachSow outdoors · Aug 28 – Sep 11

GarlicPlant cloves · Oct 9 – Nov 13

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 13) and first fall frost (Oct 23) 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 64075 came on Feb 25 — 20 days earlier than the 1991–2020 average (Mar 17).

average
Mar 172026
Feb 25

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 6a in Missouri

516 plants native to the lower 48 states, recorded in Missouri, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. Each links to its USDA PLANTS profile.

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 Oak Grove, MO.

Soil in Oak Grove, MO

The soil mapped at the center of ZIP 64075 is Arisburg — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables

pH6.1slightly acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter3%moderate

Hydrologic groupCwater soaks in slowly

Farmland classprime farmlandUSDA classification

Map unit: Arisburg silt loam, 1 to 5 percent slopes.

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 64075; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Oak Grove, MO

Summer high88 °Faverage high, July

Winter low18 °Faverage low, January

Hot days33days a year at 90 °F or more

Freezing nights116nights a year at 32 °F or less

Growing degree days3,805base 50 °F — the season’s usable heat

Longest day14 h 54 mindaylight on June 21

Shortest day9 h 26 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation43.5 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Elm, MO (11 mi away); precipitation: Blue Springs 0.9 Nw, MO (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

5 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

640296b

Grain Valley, MO · 4 mi

640116a

Bates City, MO · 5 mi

640146b

Blue Springs, MO · 6 mi

640746a

Napoleon, MO · 7 mi

640136b

Blue Springs, MO · 7 mi

640706b

Lone Jack, MO · 8 mi

640156b

Blue Springs, MO · 9 mi

640166a

Buckner, MO · 9 mi

Missouri planting zones →

Questions about 64075

What planting zone is ZIP code 64075?

ZIP code 64075 (Oak Grove, MO) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Oak Grove, MO?

The median last spring frost (32 °F) near 64075 is April 13; after April 29 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Elm station.

When is the first frost in Oak Grove, MO?

The median first fall frost near 64075 is October 23, giving a median frost-free growing season of 191 days.

When should I plant tomatoes in 64075?

Start tomato seeds indoors around Feb 16 – Mar 2 and set transplants outside around Apr 20 – May 4, one to three weeks after the median last frost.

How much rain and snow does 64075 get?

About 43.5 inches of precipitation a year (NOAA 1991–2020 normals, Blue Springs 0.9 Nw station).

How hot do summers get in Oak Grove, MO?

The average high peaks at 88 °F in July, with about 33 days a year at 90 °F or more.

What kind of soil does 64075 have?

The USDA soil survey maps Arisburg at the center of ZIP 64075: silt loam, somewhat poorly drained, pH about 6.1 (slightly acidic).

Did spring come early in Oak Grove, MO in 2026?

Spring leaf-out near 64075 came on Feb 25 in 2026, 20 days earlier than the 1991–2020 average (Mar 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Oak Grove, MO?

Intermediate onions: the longest day near 64075 is 14 h 54 min, so day-neutral types bulb best; long-day varieties may not bulb fully.