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

Planting zone for 63662 — Patton, MO

ZIP code 63662 (Patton, Bollinger County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 21 and the first fall frost October 16.

Where ZIP 63662 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.

Zone6b−5 to 0 °F

Coldest night−20.6 to −17.8 °C

Last frostApr 21

First frostOct 16

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 Patton, 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 Patton, MO

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 21median — 50% chance of a later frost

Safe for tender plantsMay 8only 10% chance of frost after

First fall frostOctober 16median — 10% chance by Oct 1

Growing season174 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 10 and returns around October 26.

From the NOAA station Fredericktown, MO — 14 miles away, elevation 761 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 63662

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 10 – Mar 24

SpinachSow outdoors · Mar 10 – Mar 31

Broccoli, cabbageStart indoors · Feb 10 – Feb 24

Broccoli, cabbageTransplant · Mar 31 – Apr 14

Onion setsPlant outdoors · Mar 24 – Apr 7

PotatoesPlant outdoors · Mar 31 – Apr 14

LettuceSow outdoors · Mar 24 – Apr 7

Carrots, beetsSow outdoors · Mar 31 – Apr 14

TomatoesStart indoors · Feb 24 – Mar 10

TomatoesTransplant · Apr 28 – May 12

Peppers, eggplantStart indoors · Feb 10 – Feb 24

Peppers, eggplantTransplant · May 5 – May 19

BeansSow outdoors · Apr 28 – May 12

Sweet cornSow outdoors · Apr 28 – May 12

Cucumbers, squashSow outdoors · Apr 28 – May 12

Fall lettuce, spinachSow outdoors · Aug 21 – Sep 4

GarlicPlant cloves · Oct 2 – Nov 6

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 21) and first fall frost (Oct 16) 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 63662 came on Mar 2 — 10 days earlier than the 1991–2020 average (Mar 12).

average
Mar 122026
Mar 2

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.

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 Patton, MO.

Soil in Patton, MO

The soil mapped at the center of ZIP 63662 is Hildebrecht — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables

pH5.4strongly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter3.75%moderate

Hydrologic groupC/Dslow when drained; wet otherwise

Farmland classFarmland of statewide importanceUSDA classification

Map unit: Hildebrecht silt loam, 3 to 8 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 63662; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Patton, MO

Summer high88 °Faverage high, July

Winter low21 °Faverage low, January

Hot days35days a year at 90 °F or more

Freezing nights115nights a year at 32 °F or less

Growing degree days3,766base 50 °F — the season’s usable heat

Longest day14 h 45 mindaylight on June 21

Shortest day9 h 34 mindaylight on December 21

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

Precipitation46.3 inper year, rain and melted snow

Snowfall9 inper year; 12 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Fredericktown, MO (14 mi away); precipitation: Fredericktown, MO (14 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

637816b

Sedgewickville, MO · 7 mi

Friedheim, MO · 13 mi

637667a

Millersville, MO · 13 mi

636456b

Fredericktown, MO · 15 mi

637646b

Marble Hill, MO · 15 mi

637756b

Perryville, MO · 15 mi

Missouri planting zones →

Questions about 63662

What planting zone is ZIP code 63662?

ZIP code 63662 (Patton, 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 Patton, MO?

The median last spring frost (32 °F) near 63662 is April 21; after May 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Fredericktown station.

When is the first frost in Patton, MO?

The median first fall frost near 63662 is October 16, giving a median frost-free growing season of 174 days.

When should I plant tomatoes in 63662?

Start tomato seeds indoors around Feb 24 – Mar 10 and set transplants outside around Apr 28 – May 12, one to three weeks after the median last frost.

How much rain and snow does 63662 get?

About 46.3 inches of precipitation a year and 9 inches of snowfall (NOAA 1991–2020 normals, Fredericktown station).

How hot do summers get in Patton, MO?

The average high peaks at 88 °F in July, with about 35 days a year at 90 °F or more.

What kind of soil does 63662 have?

The USDA soil survey maps Hildebrecht at the center of ZIP 63662: silt loam, moderately well drained, pH about 5.4 (strongly acidic).

Did spring come early in Patton, MO in 2026?

Spring leaf-out near 63662 came on Mar 2 in 2026, 10 days earlier than the 1991–2020 average (Mar 12), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Patton, MO?

Intermediate onions: the longest day near 63662 is 14 h 45 min, so day-neutral types bulb best; long-day varieties may not bulb fully.