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

Planting zone for 65705 — Marionville, MO

ZIP code 65705 (Marionville, Lawrence County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 15 and the first fall frost October 23.

Where ZIP 65705 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 15
First frostOct 23
2012 zone6b

Was 6b on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Marionville, 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 Marionville, MO

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 15median — 50% chance of a later frost
Safe for tender plantsMay 2only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 11
Growing season189 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 4 and returns around November 1.

From the NOAA station Billings 1sw, MO — 4 miles away, elevation 1,309 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 65705

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 4 – Mar 18
SpinachSow outdoors · Mar 4 – Mar 25
Broccoli, cabbageStart indoors · Feb 4 – Feb 18
Broccoli, cabbageTransplant · Mar 25 – Apr 8
Onion setsPlant outdoors · Mar 18 – Apr 1
PotatoesPlant outdoors · Mar 25 – Apr 8
LettuceSow outdoors · Mar 18 – Apr 1
Carrots, beetsSow outdoors · Mar 25 – Apr 8
TomatoesStart indoors · Feb 18 – Mar 4
TomatoesTransplant · Apr 22 – May 6
Peppers, eggplantStart indoors · Feb 4 – Feb 18
Peppers, eggplantTransplant · Apr 29 – May 13
BeansSow outdoors · Apr 22 – May 6
Sweet cornSow outdoors · Apr 22 – May 6
Cucumbers, squashSow outdoors · Apr 22 – May 6
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 15) 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 65705 came on Feb 18 — 20 days earlier than the 1991–2020 average (Mar 10).

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).

Soil in Marionville, MO

The soil mapped at the center of ZIP 65705 is Keeno — gravelly silt loam, moderately well drained.

TextureGravelly silt loama good balance for most vegetables
pH5.9moderately acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Keeno-Bona complex, 2 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 65705; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marionville, MO

Summer high90 °Faverage high, July
Winter low22 °Faverage low, January
Hot days36days a year at 90 °F or more
Freezing nights112nights a year at 32 °F or less
Growing degree days4,165base 50 °F — the season’s usable heat
Longest day14 h 43 mindaylight on June 21
Shortest day9 h 37 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation45.8 inper year, rain and melted snow
Snowfall12 inper year; 11 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 45 °F, low 22 °F 45°22° JanFebruary: average high 50 °F, low 25 °F 50°25° FebMarch: average high 59 °F, low 33 °F 59°33° MarApril: average high 69 °F, low 43 °F 69°43° AprMay: average high 76 °F, low 54 °F 76°54° MayJune: average high 85 °F, low 63 °F 85°63° JunJuly: average high 90 °F, low 67 °F 90°67° JulAugust: average high 89 °F, low 65 °F 89°65° AugSeptember: average high 82 °F, low 57 °F 82°57° SepOctober: average high 70 °F, low 45 °F 70°45° OctNovember: average high 58 °F, low 34 °F 58°34° NovDecember: average high 48 °F, low 26 °F 48°26° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 2.57 in precipitation, 4.7 in snowfall 2.6❄5 JanFebruary: 2.40 in precipitation, 2.5 in snowfall 2.4❄3 FebMarch: 3.90 in precipitation, 0.9 in snowfall 3.9❄1 MarApril: 4.53 in precipitation, 0.2 in snowfall 4.5 AprMay: 5.64 in precipitation 5.6 MayJune: 4.44 in precipitation 4.4 JunJuly: 4.01 in precipitation 4.0 JulAugust: 3.52 in precipitation 3.5 AugSeptember: 4.80 in precipitation 4.8 SepOctober: 3.49 in precipitation, 0.1 in snowfall 3.5 OctNovember: 3.63 in precipitation, 0.5 in snowfall 3.6❄1 NovDecember: 2.85 in precipitation, 3 in snowfall 2.9❄3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Billings 1sw, MO (4 mi away); precipitation: Billings 1sw, MO (4 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.

656106b
Billings, MO · 6 mi
656647a
Halltown, MO · 7 mi
657386b
Republic, MO · 8 mi
656057a
Aurora, MO · 10 mi
656126b
Bois D Arc, MO · 10 mi
657127a
Mount Vernon, MO · 10 mi
656046b
Ash Grove, MO · 12 mi
656316b
Clever, MO · 13 mi

Missouri planting zones →

Questions about 65705

What planting zone is ZIP code 65705?

ZIP code 65705 (Marionville, MO) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Marionville, MO?

The median last spring frost (32 °F) near 65705 is April 15; after May 2 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Billings 1sw station.

When is the first frost in Marionville, MO?

The median first fall frost near 65705 is October 23, giving a median frost-free growing season of 189 days.

When should I plant tomatoes in 65705?

Start tomato seeds indoors around Feb 18 – Mar 4 and set transplants outside around Apr 22 – May 6, one to three weeks after the median last frost.

How much rain and snow does 65705 get?

About 45.8 inches of precipitation a year and 12 inches of snowfall (NOAA 1991–2020 normals, Billings 1sw station).

How hot do summers get in Marionville, MO?

The average high peaks at 90 °F in July, with about 36 days a year at 90 °F or more.

What kind of soil does 65705 have?

The USDA soil survey maps Keeno at the center of ZIP 65705: gravelly silt loam, moderately well drained, pH about 5.9 (moderately acidic).

Did spring come early in Marionville, MO in 2026?

Spring leaf-out near 65705 came on Feb 18 in 2026, 20 days earlier than the 1991–2020 average (Mar 10), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Marionville, MO?

Intermediate onions: the longest day near 65705 is 14 h 43 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 65705 change?

Yes. The 2012 USDA map put 65705 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.