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

Planting zone for 30337 — Atlanta, GA

ZIP code 30337 (Atlanta, Fulton County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 15 and the first fall frost November 20.

Where ZIP 30337 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.

Zone8b15 to 20 °F
Coldest night−9.4 to −6.7 °C
Last frostMar 15
First frostNov 20
2012 zone8a

Was 8a 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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Atlanta, 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 Atlanta, GA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 15median — 50% chance of a later frost
Safe for tender plantsApril 4only 10% chance of frost after
First fall frostNovember 20median — 10% chance by Nov 4
Growing season252 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 28 and returns around December 5.

From the NOAA station Atlanta Hartsfield Intl Airport, GA — within 1 mile, elevation 1,011 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 30337

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 1 – Feb 15
SpinachSow outdoors · Feb 1 – Feb 22
Broccoli, cabbageStart indoors · Jan 4 – Jan 18
Broccoli, cabbageTransplant · Feb 22 – Mar 8
Onion setsPlant outdoors · Feb 15 – Mar 1
PotatoesPlant outdoors · Feb 22 – Mar 8
LettuceSow outdoors · Feb 15 – Mar 1
Carrots, beetsSow outdoors · Feb 22 – Mar 8
TomatoesStart indoors · Jan 18 – Feb 1
TomatoesTransplant · Mar 22 – Apr 5
Peppers, eggplantStart indoors · Jan 4 – Jan 18
Peppers, eggplantTransplant · Mar 29 – Apr 12
BeansSow outdoors · Mar 22 – Apr 5
Sweet cornSow outdoors · Mar 22 – Apr 5
Cucumbers, squashSow outdoors · Mar 22 – Apr 5
Fall lettuce, spinachSow outdoors · Sep 25 – Oct 9
GarlicPlant cloves · Nov 6 – Dec 11
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 15) and first fall frost (Nov 20) 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 30337 came on Feb 14 — 4 days later than the 1991–2020 average (Feb 10).

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.

Trees 89

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 °FAtlantic white cedar50 ft · blooms spring · medium shade tolerance · to −36 °F

Shrubs 143

Allegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 174

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 spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °FAmerican water horehound1.8 ft · blooms early summer · low shade tolerance · to −38 °F

Grasses 159

American cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fbig cordgrass8 ft · blooms spring · high shade tolerance · to −3 °F

Vines 13

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °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 Atlanta, GA.

Soil in Atlanta, GA

The soil mapped at the center of ZIP 30337 is Cecil — sandy loam, well drained.

TextureSandy loamdrains 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 groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Cecil-Urban land complex, 2 to 10 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 30337; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Atlanta, GA

Summer high90 °Faverage high, July
Winter low36 °Faverage low, January
Hot days47days a year at 90 °F or more
Freezing nights36nights a year at 32 °F or less
Growing degree days5,606base 50 °F — the season’s usable heat
Longest day14 h 23 mindaylight on June 21
Shortest day9 h 55 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation50.4 inper year, rain and melted snow
Snowfall2 inper year; 1 days with snow on the ground

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 54 °F, low 36 °F 54°36° JanFebruary: average high 58 °F, low 39 °F 58°39° FebMarch: average high 66 °F, low 45 °F 66°45° MarApril: average high 74 °F, low 53 °F 74°53° AprMay: average high 81 °F, low 61 °F 81°61° MayJune: average high 87 °F, low 69 °F 87°69° JunJuly: average high 90 °F, low 72 °F 90°72° JulAugust: average high 89 °F, low 71 °F 89°71° AugSeptember: average high 84 °F, low 66 °F 84°66° SepOctober: average high 74 °F, low 55 °F 74°55° OctNovember: average high 64 °F, low 44 °F 64°44° NovDecember: average high 56 °F, low 38 °F 56°38° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 4.59 in precipitation, 1 in snowfall 4.6❄1 JanFebruary: 4.55 in precipitation, 0.4 in snowfall 4.5 FebMarch: 4.68 in precipitation, 0.4 in snowfall 4.7 MarApril: 3.81 in precipitation 3.8 AprMay: 3.56 in precipitation 3.6 MayJune: 4.54 in precipitation 4.5 JunJuly: 4.75 in precipitation 4.8 JulAugust: 4.30 in precipitation 4.3 AugSeptember: 3.82 in precipitation 3.8 SepOctober: 3.28 in precipitation 3.3 OctNovember: 3.98 in precipitation 4.0 NovDecember: 4.57 in precipitation, 0.4 in snowfall 4.6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Atlanta Hartsfield Intl Airport, GA (within 1 mile); precipitation: Atlanta Hartsfield Intl Airport, GA (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

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

303448a
Atlanta, GA · 3 mi
303548a
Atlanta, GA · 4 mi
303498a
Atlanta, GA · 4 mi
302978b
Forest Park, GA · 5 mi
302968b
Riverdale, GA · 5 mi
303158a
Atlanta, GA · 6 mi
303118a
Atlanta, GA · 6 mi
303108a
Atlanta, GA · 6 mi

All 89 ZIP codes in Atlanta → · Georgia planting zones →

Questions about 30337

What planting zone is ZIP code 30337?

ZIP code 30337 (Atlanta, 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 Atlanta, GA?

The median last spring frost (32 °F) near 30337 is March 15; after April 4 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Atlanta Hartsfield Intl Airport station.

When is the first frost in Atlanta, GA?

The median first fall frost near 30337 is November 20, giving a median frost-free growing season of 252 days.

When should I plant tomatoes in 30337?

Start tomato seeds indoors around Jan 18 – Feb 1 and set transplants outside around Mar 22 – Apr 5, one to three weeks after the median last frost.

How much rain and snow does 30337 get?

About 50.4 inches of precipitation a year and 2 inches of snowfall (NOAA 1991–2020 normals, Atlanta Hartsfield Intl Airport station).

How hot do summers get in Atlanta, GA?

The average high peaks at 90 °F in July, with about 47 days a year at 90 °F or more.

What kind of soil does 30337 have?

The USDA soil survey maps Cecil at the center of ZIP 30337: sandy loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Atlanta, GA in 2026?

Spring leaf-out near 30337 came on Feb 14 in 2026, 4 days later than the 1991–2020 average (Feb 10), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Atlanta, GA?

Intermediate onions: the longest day near 30337 is 14 h 23 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 30337 change?

Yes. The 2012 USDA map put 30337 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.