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

Planting zone for 30424 — Dover, GA

ZIP code 30424 (Dover, Screven County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 14 and the first fall frost November 15.

Where ZIP 30424 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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostMar 14

First frostNov 15

2012 zone8b

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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Dover, GA…

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 Dover, GA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 14median — 50% chance of a later frost

Safe for tender plantsApril 5only 10% chance of frost after

First fall frostNovember 15median — 10% chance by Nov 1

Growing season248 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 26 and returns around November 29.

From the NOAA station Rocky Ford 4se, GA — 5 miles away, elevation 161 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 30424

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 31 – Feb 14

SpinachSow outdoors · Jan 31 – Feb 21

Broccoli, cabbageStart indoors · Jan 3 – Jan 17

Broccoli, cabbageTransplant · Feb 21 – Mar 7

Onion setsPlant outdoors · Feb 14 – Feb 28

PotatoesPlant outdoors · Feb 21 – Mar 7

LettuceSow outdoors · Feb 14 – Feb 28

Carrots, beetsSow outdoors · Feb 21 – Mar 7

TomatoesStart indoors · Jan 17 – Jan 31

TomatoesTransplant · Mar 21 – Apr 4

Peppers, eggplantStart indoors · Jan 3 – Jan 17

Peppers, eggplantTransplant · Mar 28 – Apr 11

BeansSow outdoors · Mar 21 – Apr 4

Sweet cornSow outdoors · Mar 21 – Apr 4

Cucumbers, squashSow outdoors · Mar 21 – Apr 4

Fall lettuce, spinachSow outdoors · Sep 20 – Oct 4

GarlicPlant cloves · Nov 1 – Dec 6

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 14) and first fall frost (Nov 15) 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 30424 came on Feb 2 — about the same time as the 1991–2020 average (Jan 31).

average
Jan 312026
Feb 2

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 8b in Georgia

590 plants native to the lower 48 states, recorded in Georgia, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. 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 Dover, GA.

Soil in Dover, GA

The soil mapped at the center of ZIP 30424 is Chipley — sand, somewhat poorly drained.

TextureSanddrains and warms fast; dries out and needs more feeding

pH5.2strongly acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter1.25%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Chipley sand, 0 to 2 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 30424; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Dover, GA

Summer high92 °Faverage high, July

Winter low36 °Faverage low, January

Hot days74days a year at 90 °F or more

Freezing nights44nights a year at 32 °F or less

Growing degree days5,789base 50 °F — the season’s usable heat

Longest day14 h 18 mindaylight on June 21

Shortest day10 h 00 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation48.4 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: Rocky Ford 4se, GA (5 mi away); precipitation: Rocky Ford 4se, GA (5 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.

304618b

Statesboro, GA · 6 mi

304598b

Statesboro, GA · 10 mi

304558b

Rocky Ford, GA · 10 mi

304608b

Statesboro, GA · 11 mi

Statesboro, GA · 14 mi

Georgia planting zones →

Questions about 30424

What planting zone is ZIP code 30424?

ZIP code 30424 (Dover, GA) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Dover, GA?

The median last spring frost (32 °F) near 30424 is March 14; after April 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Rocky Ford 4se station.

When is the first frost in Dover, GA?

The median first fall frost near 30424 is November 15, giving a median frost-free growing season of 248 days.

When should I plant tomatoes in 30424?

Start tomato seeds indoors around Jan 17 – Jan 31 and set transplants outside around Mar 21 – Apr 4, one to three weeks after the median last frost.

How much rain and snow does 30424 get?

About 48.4 inches of precipitation a year (NOAA 1991–2020 normals, Rocky Ford 4se station).

How hot do summers get in Dover, GA?

The average high peaks at 92 °F in July, with about 74 days a year at 90 °F or more.

What kind of soil does 30424 have?

The USDA soil survey maps Chipley at the center of ZIP 30424: sand, somewhat poorly drained, pH about 5.2 (strongly acidic).

Did spring come early in Dover, GA in 2026?

Spring leaf-out near 30424 came on Feb 2 in 2026, about the same as the 1991–2020 average (Jan 31), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Dover, GA?

Short-day onions: the longest day near 30424 is 14 h 18 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.