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

Planting zone for 43756 — Mcconnelsville, OH

ZIP code 43756 (Mcconnelsville, Morgan County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 27 and the first fall frost October 21.

Where ZIP 43756 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 27

First frostOct 21

2012 zone6a

Was 6a 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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Mcconnelsville, 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 Mcconnelsville, OH

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 27median — 50% chance of a later frost

Safe for tender plantsMay 14only 10% chance of frost after

First fall frostOctober 21median — 10% chance by Oct 8

Growing season176 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 15 and returns around November 1.

From the NOAA station Mc Connellsville Lk 7, OH — 4 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 43756

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 16 – Mar 30

SpinachSow outdoors · Mar 16 – Apr 6

Broccoli, cabbageStart indoors · Feb 16 – Mar 2

Broccoli, cabbageTransplant · Apr 6 – Apr 20

Onion setsPlant outdoors · Mar 30 – Apr 13

PotatoesPlant outdoors · Apr 6 – Apr 20

LettuceSow outdoors · Mar 30 – Apr 13

Carrots, beetsSow outdoors · Apr 6 – Apr 20

TomatoesStart indoors · Mar 2 – Mar 16

TomatoesTransplant · May 4 – May 18

Peppers, eggplantStart indoors · Feb 16 – Mar 2

Peppers, eggplantTransplant · May 11 – May 25

BeansSow outdoors · May 4 – May 18

Sweet cornSow outdoors · May 4 – May 18

Cucumbers, squashSow outdoors · May 4 – May 18

Fall lettuce, spinachSow outdoors · Aug 26 – Sep 9

GarlicPlant cloves · Oct 7 – Nov 11

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 27) and first fall frost (Oct 21) 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 43756 came on Mar 10 — 14 days earlier than the 1991–2020 average (Mar 24).

average
Mar 242026
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 Mcconnelsville, OH

The soil mapped at the center of ZIP 43756 is Nolin — silt loam, well drained.

TextureSilt loama good balance for most vegetables

pH7.0neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter3%moderate

Hydrologic groupBwater soaks in moderately

Farmland classPrime farmland if protected from flooding or not frequently flooded during the growing seasonUSDA classification

Map unit: Nolin silt loam, 0 to 3 percent slopes, frequently flooded.

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 43756; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Mcconnelsville, OH

Summer high84 °Faverage high, July

Winter low20 °Faverage low, January

Hot days12days a year at 90 °F or more

Freezing nights128nights a year at 32 °F or less

Growing degree days3,213base 50 °F — the season’s usable heat

Longest day14 h 59 mindaylight on June 21

Shortest day9 h 21 mindaylight on December 21

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

Precipitation45 inper year, rain and melted snow

Snowfall19 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mc Connellsville Lk 7, OH (4 mi away); precipitation: Mc Connellsville Lk 7, OH (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

Stockport, OH · 12 mi

437326b

Cumberland, OH · 13 mi

437276b

Chandlersville, OH · 13 mi

Ohio planting zones →

Questions about 43756

What planting zone is ZIP code 43756?

ZIP code 43756 (Mcconnelsville, OH) 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 Mcconnelsville, OH?

The median last spring frost (32 °F) near 43756 is April 27; after May 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mc Connellsville Lk 7 station.

When is the first frost in Mcconnelsville, OH?

The median first fall frost near 43756 is October 21, giving a median frost-free growing season of 176 days.

When should I plant tomatoes in 43756?

Start tomato seeds indoors around Mar 2 – Mar 16 and set transplants outside around May 4 – May 18, one to three weeks after the median last frost.

How much rain and snow does 43756 get?

About 45 inches of precipitation a year and 19 inches of snowfall (NOAA 1991–2020 normals, Mc Connellsville Lk 7 station).

How hot do summers get in Mcconnelsville, OH?

The average high peaks at 84 °F in July, with about 12 days a year at 90 °F or more.

What kind of soil does 43756 have?

The USDA soil survey maps Nolin at the center of ZIP 43756: silt loam, well drained, pH about 7.0 (neutral).

Did spring come early in Mcconnelsville, OH in 2026?

Spring leaf-out near 43756 came on Mar 10 in 2026, 14 days earlier than the 1991–2020 average (Mar 24), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Mcconnelsville, OH?

Intermediate onions: the longest day near 43756 is 14 h 59 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 43756 change?

Yes. The 2012 USDA map put 43756 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.