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

Planting zone for 44617 — Charm, OH

ZIP code 44617 (Charm, Holmes County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 2 and the first fall frost October 14.

Where ZIP 44617 is

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 frostMay 2

First frostOct 14

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 Charm, 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 Charm, OH

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 2median — 50% chance of a later frost

Safe for tender plantsMay 21only 10% chance of frost after

First fall frostOctober 14median — 10% chance by Oct 1

Growing season164 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 21 and returns around October 26.

From the NOAA station Millersburg, OH — 7 miles away, elevation 820 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 44617

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 21 – Apr 4

SpinachSow outdoors · Mar 21 – Apr 11

Broccoli, cabbageStart indoors · Feb 21 – Mar 7

Broccoli, cabbageTransplant · Apr 11 – Apr 25

Onion setsPlant outdoors · Apr 4 – Apr 18

PotatoesPlant outdoors · Apr 11 – Apr 25

LettuceSow outdoors · Apr 4 – Apr 18

Carrots, beetsSow outdoors · Apr 11 – Apr 25

TomatoesStart indoors · Mar 7 – Mar 21

TomatoesTransplant · May 9 – May 23

Peppers, eggplantStart indoors · Feb 21 – Mar 7

Peppers, eggplantTransplant · May 16 – May 30

BeansSow outdoors · May 9 – May 23

Sweet cornSow outdoors · May 9 – May 23

Cucumbers, squashSow outdoors · May 9 – May 23

Fall lettuce, spinachSow outdoors · Aug 19 – Sep 2

GarlicPlant cloves · Sep 30 – Nov 4

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 2) and first fall frost (Oct 14) 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 44617 came on Mar 15 — 14 days earlier than the 1991–2020 average (Mar 29).

average
Mar 292026
Mar 15

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.

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 Charm, OH.

Soil in Charm, OH

The soil mapped at the center of ZIP 44617 is Coshocton — silt loam, moderately well drained.

TextureSilt 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 classFarmland of local importanceUSDA classification

Map unit: Coshocton silt loam, 15 to 25 percent slopes, eroded.

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 44617; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Charm, OH

Summer high84 °Faverage high, July

Winter low18 °Faverage low, January

Hot days12days a year at 90 °F or more

Freezing nights141nights a year at 32 °F or less

Growing degree days2,884base 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)

Precipitation40.7 inper year, rain and melted snow

Snowfall20 inper year; 29 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: Millersburg, OH (7 mi away); precipitation: Millersburg, OH (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

446106a

Berlin, OH · 4 mi

446876a

Walnut Creek, OH · 4 mi

438046a

Baltic, OH · 4 mi

446546a

Millersburg, OH · 5 mi

446816a

Sugarcreek, OH · 6 mi

446606a

Mount Hope, OH · 8 mi

Ohio planting zones →

Questions about 44617

What planting zone is ZIP code 44617?

ZIP code 44617 (Charm, 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 Charm, OH?

The median last spring frost (32 °F) near 44617 is May 2; after May 21 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Millersburg station.

When is the first frost in Charm, OH?

The median first fall frost near 44617 is October 14, giving a median frost-free growing season of 164 days.

When should I plant tomatoes in 44617?

Start tomato seeds indoors around Mar 7 – Mar 21 and set transplants outside around May 9 – May 23, one to three weeks after the median last frost.

How much rain and snow does 44617 get?

About 40.7 inches of precipitation a year and 20 inches of snowfall (NOAA 1991–2020 normals, Millersburg station).

How hot do summers get in Charm, 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 44617 have?

The USDA soil survey maps Coshocton at the center of ZIP 44617: silt loam, moderately well drained, pH about 5.9 (moderately acidic).

Did spring come early in Charm, OH in 2026?

Spring leaf-out near 44617 came on Mar 15 in 2026, 14 days earlier than the 1991–2020 average (Mar 29), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Charm, OH?

Long-day onions: the longest day near 44617 is 15 h 04 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).