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

Planting zone for 30148 — Marble Hill, GA

ZIP code 30148 (Marble Hill, Pickens County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is March 31 and the first fall frost November 5.

Where ZIP 30148 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 31

First frostNov 5

2012 zone7b

Was 7b 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 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Marble Hill, 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 Marble Hill, GA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 31median — 50% chance of a later frost

Safe for tender plantsApril 18only 10% chance of frost after

First fall frostNovember 5median — 10% chance by Oct 24

Growing season221 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 17 and returns around November 18.

From the NOAA station Jasper 1 Nnw, GA — 11 miles away, elevation 1,467 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 30148

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 17 – Mar 3

SpinachSow outdoors · Feb 17 – Mar 10

Broccoli, cabbageStart indoors · Jan 20 – Feb 3

Broccoli, cabbageTransplant · Mar 10 – Mar 24

Onion setsPlant outdoors · Mar 3 – Mar 17

PotatoesPlant outdoors · Mar 10 – Mar 24

LettuceSow outdoors · Mar 3 – Mar 17

Carrots, beetsSow outdoors · Mar 10 – Mar 24

TomatoesStart indoors · Feb 3 – Feb 17

TomatoesTransplant · Apr 7 – Apr 21

Peppers, eggplantStart indoors · Jan 20 – Feb 3

Peppers, eggplantTransplant · Apr 14 – Apr 28

BeansSow outdoors · Apr 7 – Apr 21

Sweet cornSow outdoors · Apr 7 – Apr 21

Cucumbers, squashSow outdoors · Apr 7 – Apr 21

Fall lettuce, spinachSow outdoors · Sep 10 – Sep 24

GarlicPlant cloves · Oct 22 – Nov 26

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 5) 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 30148 came on Feb 19 — about the same time as the 1991–2020 average (Feb 17).

average
Feb 172026
Feb 19

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 Marble Hill, GA

The soil mapped at the center of ZIP 30148 is Hayesville — sandy clay loam, well drained.

TextureSandy clay loamholds water and nutrients; slow to drain and warm up

pH5.1strongly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2%moderate

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Hayesville sandy clay loam, 10 to 25 percent slopes, severely 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 30148; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marble Hill, GA

Summer high85 °Faverage high, July

Winter low31 °Faverage low, January

Hot days12days a year at 90 °F or more

Freezing nights61nights a year at 32 °F or less

Growing degree days4,168base 50 °F — the season’s usable heat

Longest day14 h 28 mindaylight on June 21

Shortest day9 h 51 mindaylight on December 21

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

Precipitation58.6 inper year, rain and melted snow

Snowfall3 inper year; 1 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: Jasper 1 Nnw, GA (11 mi away); precipitation: Jasper 1 Nnw, GA (11 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.

301778a

Tate, GA · 7 mi

305348a

Dawsonville, GA · 7 mi

Ball Ground, GA · 10 mi

Talking Rock, GA · 16 mi

Georgia planting zones →

Questions about 30148

What planting zone is ZIP code 30148?

ZIP code 30148 (Marble Hill, GA) 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 Marble Hill, GA?

The median last spring frost (32 °F) near 30148 is March 31; after April 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Jasper 1 Nnw station.

When is the first frost in Marble Hill, GA?

The median first fall frost near 30148 is November 5, giving a median frost-free growing season of 221 days.

When should I plant tomatoes in 30148?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 30148 get?

About 58.6 inches of precipitation a year and 3 inches of snowfall (NOAA 1991–2020 normals, Jasper 1 Nnw station).

How hot do summers get in Marble Hill, GA?

The average high peaks at 85 °F in July, with about 12 days a year at 90 °F or more.

What kind of soil does 30148 have?

The USDA soil survey maps Hayesville at the center of ZIP 30148: sandy clay loam, well drained, pH about 5.1 (strongly acidic).

Did spring come early in Marble Hill, GA in 2026?

Spring leaf-out near 30148 came on Feb 19 in 2026, about the same as the 1991–2020 average (Feb 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Marble Hill, GA?

Intermediate onions: the longest day near 30148 is 14 h 28 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 30148 change?

Yes. The 2012 USDA map put 30148 in zone 7b; the 2023 map puts it in zone 8a. The newer map uses 1991–2020 data and more weather stations.