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

Planting zone for 43340 — Mount Victory, OH

ZIP code 43340 (Mount Victory, Hardin County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 22 and the first fall frost October 24.

Where ZIP 43340 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 22
First frostOct 24
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 Mount Victory, OH…

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 Mount Victory, OH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 22median — 50% chance of a later frost
Safe for tender plantsMay 7only 10% chance of frost after
First fall frostOctober 24median — 10% chance by Oct 9
Growing season182 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 10 and returns around November 3.

From the NOAA station Kenton, OH — 10 miles away, elevation 997 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 43340

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 11 – Mar 25
SpinachSow outdoors · Mar 11 – Apr 1
Broccoli, cabbageStart indoors · Feb 11 – Feb 25
Broccoli, cabbageTransplant · Apr 1 – Apr 15
Onion setsPlant outdoors · Mar 25 – Apr 8
PotatoesPlant outdoors · Apr 1 – Apr 15
LettuceSow outdoors · Mar 25 – Apr 8
Carrots, beetsSow outdoors · Apr 1 – Apr 15
TomatoesStart indoors · Feb 25 – Mar 11
TomatoesTransplant · Apr 29 – May 13
Peppers, eggplantStart indoors · Feb 11 – Feb 25
Peppers, eggplantTransplant · May 6 – May 20
BeansSow outdoors · Apr 29 – May 13
Sweet cornSow outdoors · Apr 29 – May 13
Cucumbers, squashSow outdoors · Apr 29 – May 13
Fall lettuce, spinachSow outdoors · Aug 29 – Sep 12
GarlicPlant cloves · Oct 10 – Nov 14
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 22) and first fall frost (Oct 24) 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 43340 came on Mar 12 — 19 days earlier than the 1991–2020 average (Mar 31).

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 Ohio

565 plants native to the lower 48 states, recorded in Ohio, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. 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 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 109

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °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 °F

Wildflowers & perennials 202

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °FAmerican vetch1.3 ft · blooms late spring · high shade tolerance · to −38 °F

Grasses 164

American beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 8

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fsummer grape30 ft · blooms late spring · low shade tolerance · to −23 °Ftrumpet creeper2 ft · blooms summer · high shade tolerance · to −13 °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 Mount Victory, OH.

Soil in Mount Victory, OH

The soil mapped at the center of ZIP 43340 is Pewamo — silty clay loam, very poorly drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH6.4slightly acidic; most vegetables like 6.0–7.0
DrainageVery poorly drainedconsider raised beds
Organic matter4%moderate
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classPrime farmland if drainedUSDA classification

Map unit: Pewamo silty clay loam, 0 to 1 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 43340; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Mount Victory, OH

Summer high84 °Faverage high, July
Winter low18 °Faverage low, January
Hot days16days a year at 90 °F or more
Freezing nights124nights a year at 32 °F or less
Growing degree days3,219base 50 °F — the season’s usable heat
Longest day15 h 04 mindaylight on June 21
Shortest day9 h 16 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation37.6 inper year, rain and melted snow
Snowfall26 inper year

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 33 °F, low 18 °F 33°18° JanFebruary: average high 36 °F, low 21 °F 36°21° FebMarch: average high 47 °F, low 29 °F 47°29° MarApril: average high 60 °F, low 39 °F 60°39° AprMay: average high 72 °F, low 50 °F 72°50° MayJune: average high 81 °F, low 60 °F 81°60° JunJuly: average high 84 °F, low 64 °F 84°64° JulAugust: average high 83 °F, low 62 °F 83°62° AugSeptember: average high 77 °F, low 54 °F 77°54° SepOctober: average high 64 °F, low 43 °F 64°43° OctNovember: average high 50 °F, low 33 °F 50°33° NovDecember: average high 38 °F, low 24 °F 38°24° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″January: 2.63 in precipitation, 9.3 in snowfall 2.6❄9 JanFebruary: 2.55 in precipitation, 7.4 in snowfall 2.5❄7 FebMarch: 2.78 in precipitation, 4.5 in snowfall 2.8❄5 MarApril: 3.69 in precipitation, 0.3 in snowfall 3.7 AprMay: 3.72 in precipitation 3.7 MayJune: 3.85 in precipitation 3.9 JunJuly: 3.43 in precipitation 3.4 JulAugust: 3.56 in precipitation 3.6 AugSeptember: 3.11 in precipitation 3.1 SepOctober: 2.62 in precipitation, 0.1 in snowfall 2.6 OctNovember: 2.94 in precipitation, 0.7 in snowfall 2.9❄1 NovDecember: 2.76 in precipitation, 3.5 in snowfall 2.8❄4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Kenton, OH (10 mi away); precipitation: Kenton, OH (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

433456a
Ridgeway, OH · 5 mi
433326a
La Rue, OH · 8 mi
433586a
West Mansfield, OH · 8 mi
433476a
Rushsylvania, OH · 9 mi
433266a
Kenton, OH · 10 mi
433446a
Richwood, OH · 11 mi
433416a
New Bloomington, OH · 11 mi
430676a
Raymond, OH · 13 mi

Ohio planting zones →

Questions about 43340

What planting zone is ZIP code 43340?

ZIP code 43340 (Mount Victory, OH) 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 Mount Victory, OH?

The median last spring frost (32 °F) near 43340 is April 22; after May 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Kenton station.

When is the first frost in Mount Victory, OH?

The median first fall frost near 43340 is October 24, giving a median frost-free growing season of 182 days.

When should I plant tomatoes in 43340?

Start tomato seeds indoors around Feb 25 – Mar 11 and set transplants outside around Apr 29 – May 13, one to three weeks after the median last frost.

How much rain and snow does 43340 get?

About 37.6 inches of precipitation a year and 26 inches of snowfall (NOAA 1991–2020 normals, Kenton station).

How hot do summers get in Mount Victory, OH?

The average high peaks at 84 °F in July, with about 16 days a year at 90 °F or more.

What kind of soil does 43340 have?

The USDA soil survey maps Pewamo at the center of ZIP 43340: silty clay loam, very poorly drained, pH about 6.4 (slightly acidic).

Did spring come early in Mount Victory, OH in 2026?

Spring leaf-out near 43340 came on Mar 12 in 2026, 19 days earlier than the 1991–2020 average (Mar 31), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Mount Victory, OH?

Long-day onions: the longest day near 43340 is 15 h 04 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).