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

Planting zone for 44402 — Bristolville, OH

ZIP code 44402 (Bristolville, Trumbull County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 30 and the first fall frost October 23.

Where ZIP 44402 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 30
First frostOct 23
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 Bristolville, 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 Bristolville, OH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 30median — 50% chance of a later frost
Safe for tender plantsMay 16only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 7
Growing season176 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 18 and returns around November 5.

From the NOAA station Mosquito Creek Lake, OH — 8 miles away, elevation 909 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 44402

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 19 – Apr 2
SpinachSow outdoors · Mar 19 – Apr 9
Broccoli, cabbageStart indoors · Feb 19 – Mar 5
Broccoli, cabbageTransplant · Apr 9 – Apr 23
Onion setsPlant outdoors · Apr 2 – Apr 16
PotatoesPlant outdoors · Apr 9 – Apr 23
LettuceSow outdoors · Apr 2 – Apr 16
Carrots, beetsSow outdoors · Apr 9 – Apr 23
TomatoesStart indoors · Mar 5 – Mar 19
TomatoesTransplant · May 7 – May 21
Peppers, eggplantStart indoors · Feb 19 – Mar 5
Peppers, eggplantTransplant · May 14 – May 28
BeansSow outdoors · May 7 – May 21
Sweet cornSow outdoors · May 7 – May 21
Cucumbers, squashSow outdoors · May 7 – May 21
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 30) 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 44402 came on Mar 21 — 13 days earlier than the 1991–2020 average (Apr 3).

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 Bristolville, OH.

Soil in Bristolville, OH

The soil mapped at the center of ZIP 44402 is Mahoning — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables
pH6.3slightly acidic; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter3%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classPrime farmland if drainedUSDA classification

Map unit: Mahoning silt loam, 2 to 6 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 44402; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Bristolville, OH

Summer high82 °Faverage high, July
Winter low18 °Faverage low, January
Hot days8days a year at 90 °F or more
Freezing nights133nights a year at 32 °F or less
Growing degree days2,707base 50 °F — the season’s usable heat
Longest day15 h 10 mindaylight on June 21
Shortest day9 h 11 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation42.7 inper year, rain and melted snow
Snowfall40 inper year; 52 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 35 °F, low 18 °F 35°18° JanFebruary: average high 38 °F, low 18 °F 38°18° FebMarch: average high 46 °F, low 25 °F 46°25° MarApril: average high 59 °F, low 36 °F 59°36° AprMay: average high 71 °F, low 46 °F 71°46° MayJune: average high 78 °F, low 56 °F 78°56° JunJuly: average high 82 °F, low 60 °F 82°60° JulAugust: average high 81 °F, low 58 °F 81°58° AugSeptember: average high 75 °F, low 51 °F 75°51° SepOctober: average high 63 °F, low 41 °F 63°41° OctNovember: average high 50 °F, low 32 °F 50°32° NovDecember: average high 40 °F, low 24 °F 40°24° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 2.87 in precipitation, 12.8 in snowfall 2.9❄13 JanFebruary: 2.25 in precipitation, 8.8 in snowfall 2.3❄9 FebMarch: 3.10 in precipitation, 6.8 in snowfall 3.1❄7 MarApril: 3.80 in precipitation, 1.2 in snowfall 3.8❄1 AprMay: 4.20 in precipitation 4.2 MayJune: 4.26 in precipitation 4.3 JunJuly: 4.78 in precipitation 4.8 JulAugust: 3.59 in precipitation 3.6 AugSeptember: 4.27 in precipitation 4.3 SepOctober: 3.63 in precipitation 3.6 OctNovember: 2.97 in precipitation, 2.6 in snowfall 3.0❄3 NovDecember: 2.95 in precipitation, 8 in snowfall 3.0❄8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mosquito Creek Lake, OH (8 mi away); precipitation: Mosquito Creek Lake, OH (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

444506a
North Bloomfield, OH · 4 mi
444916a
West Farmington, OH · 6 mi
444396a
Mesopotamia, OH · 7 mi
444826a
Warren, OH · 7 mi
444866a
Warren, OH · 7 mi
444106a
Cortland, OH · 7 mi
444706a
Southington, OH · 9 mi
440766a
Orwell, OH · 9 mi

Ohio planting zones →

Questions about 44402

What planting zone is ZIP code 44402?

ZIP code 44402 (Bristolville, 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 Bristolville, OH?

The median last spring frost (32 °F) near 44402 is April 30; after May 16 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mosquito Creek Lake station.

When is the first frost in Bristolville, OH?

The median first fall frost near 44402 is October 23, giving a median frost-free growing season of 176 days.

When should I plant tomatoes in 44402?

Start tomato seeds indoors around Mar 5 – Mar 19 and set transplants outside around May 7 – May 21, one to three weeks after the median last frost.

How much rain and snow does 44402 get?

About 42.7 inches of precipitation a year and 40 inches of snowfall (NOAA 1991–2020 normals, Mosquito Creek Lake station).

How hot do summers get in Bristolville, OH?

The average high peaks at 82 °F in July, with about 8 days a year at 90 °F or more.

What kind of soil does 44402 have?

The USDA soil survey maps Mahoning at the center of ZIP 44402: silt loam, somewhat poorly drained, pH about 6.3 (slightly acidic).

Did spring come early in Bristolville, OH in 2026?

Spring leaf-out near 44402 came on Mar 21 in 2026, 13 days earlier than the 1991–2020 average (Apr 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Bristolville, OH?

Long-day onions: the longest day near 44402 is 15 h 10 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).