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

Planting zone for 28580 — Snow Hill, NC

ZIP code 28580 (Snow Hill, Greene County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is March 26 and the first fall frost November 12.

Where ZIP 28580 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.

Zone8a10 to 15 °F

Coldest night−12.2 to −9.4 °C

Last frostMar 26

First frostNov 12

2012 zone8a

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 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Snow Hill, NC…

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 Snow Hill, NC

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 26median — 50% chance of a later frost

Safe for tender plantsApril 8only 10% chance of frost after

First fall frostNovember 12median — 10% chance by Nov 1

Growing season232 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 9 and returns around November 24.

From the NOAA station Snow Hill Waste Water Treament, NC — within 1 mile, elevation 43 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 28580

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 12 – Feb 26

SpinachSow outdoors · Feb 12 – Mar 5

Broccoli, cabbageStart indoors · Jan 15 – Jan 29

Broccoli, cabbageTransplant · Mar 5 – Mar 19

Onion setsPlant outdoors · Feb 26 – Mar 12

PotatoesPlant outdoors · Mar 5 – Mar 19

LettuceSow outdoors · Feb 26 – Mar 12

Carrots, beetsSow outdoors · Mar 5 – Mar 19

TomatoesStart indoors · Jan 29 – Feb 12

TomatoesTransplant · Apr 2 – Apr 16

Peppers, eggplantStart indoors · Jan 15 – Jan 29

Peppers, eggplantTransplant · Apr 9 – Apr 23

BeansSow outdoors · Apr 2 – Apr 16

Sweet cornSow outdoors · Apr 2 – Apr 16

Cucumbers, squashSow outdoors · Apr 2 – Apr 16

Fall lettuce, spinachSow outdoors · Sep 17 – Oct 1

GarlicPlant cloves · Oct 29 – Dec 3

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 26) and first fall frost (Nov 12) 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 28580 came on Feb 20 — 7 days later than the 1991–2020 average (Feb 13).

average
Feb 132026
Feb 20

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 8a in North Carolina

619 plants native to the lower 48 states, recorded in North Carolina, and rated by the USDA to survive 10 °F or colder — the bottom of zone 8a. 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 Snow Hill, NC.

Soil in Snow Hill, NC

The soil mapped at the center of ZIP 28580 is Autryville — loamy sand, well drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding

pH5.5moderately acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter0.75%low — add compost

Hydrologic groupAwater soaks in fast

Farmland classNot prime farmlandUSDA classification

Map unit: Autryville-Urban land complex, 0 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 28580; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Snow Hill, NC

Summer high91 °Faverage high, July

Winter low32 °Faverage low, January

Hot days59days a year at 90 °F or more

Freezing nights59nights a year at 32 °F or less

Growing degree days5,151base 50 °F — the season’s usable heat

Longest day14 h 33 mindaylight on June 21

Shortest day9 h 45 mindaylight on December 21

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

Precipitation50.6 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Snow Hill Waste Water Treament, NC (within 1 mile); precipitation: Snow Hill Waste Water Treament, NC (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

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

Walstonburg, NC · 10 mi

285038b

Kinston, NC · 10 mi

285518a

La Grange, NC · 11 mi

278288a

Farmville, NC · 11 mi

278838a

Stantonsburg, NC · 12 mi

278118a

Bellarthur, NC · 13 mi

North Carolina planting zones →

Questions about 28580

What planting zone is ZIP code 28580?

ZIP code 28580 (Snow Hill, NC) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in Snow Hill, NC?

The median last spring frost (32 °F) near 28580 is March 26; after April 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Snow Hill Waste Water Treament station.

When is the first frost in Snow Hill, NC?

The median first fall frost near 28580 is November 12, giving a median frost-free growing season of 232 days.

When should I plant tomatoes in 28580?

Start tomato seeds indoors around Jan 29 – Feb 12 and set transplants outside around Apr 2 – Apr 16, one to three weeks after the median last frost.

How much rain and snow does 28580 get?

About 50.6 inches of precipitation a year (NOAA 1991–2020 normals, Snow Hill Waste Water Treament station).

How hot do summers get in Snow Hill, NC?

The average high peaks at 91 °F in July, with about 59 days a year at 90 °F or more.

What kind of soil does 28580 have?

The USDA soil survey maps Autryville at the center of ZIP 28580: loamy sand, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Snow Hill, NC in 2026?

Spring leaf-out near 28580 came on Feb 20 in 2026, 7 days later than the 1991–2020 average (Feb 13), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Snow Hill, NC?

Intermediate onions: the longest day near 28580 is 14 h 33 min, so day-neutral types bulb best; long-day varieties may not bulb fully.