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

Planting zone for 30248 — Locust Grove, GA

ZIP code 30248 (Locust Grove, Henry 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 6.

Where ZIP 30248 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 6
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 Locust Grove, 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 Locust Grove, 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 16only 10% chance of frost after
First fall frostNovember 6median — 10% chance by Oct 24
Growing season220 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 16 and returns around November 17.

From the NOAA station Mcdonough 5 Ene, GA — 10 miles away, elevation 709 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 30248

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 11 – Sep 25
GarlicPlant cloves · Oct 23 – Nov 27
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 6) 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 30248 came on Feb 14 — 5 days later than the 1991–2020 average (Feb 9).

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 Locust Grove, GA

The soil mapped at the center of ZIP 30248 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 classprime farmlandUSDA classification

Map unit: Cecil sandy 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 30248; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Locust Grove, GA

Summer high92 °Faverage high, July
Winter low32 °Faverage low, January
Hot days74days a year at 90 °F or more
Freezing nights68nights a year at 32 °F or less
Growing degree days5,155base 50 °F — the season’s usable heat
Longest day14 h 22 mindaylight on June 21
Shortest day9 h 56 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation51.1 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 55 °F, low 32 °F 55°32° JanFebruary: average high 59 °F, low 34 °F 59°34° FebMarch: average high 67 °F, low 40 °F 67°40° MarApril: average high 76 °F, low 47 °F 76°47° AprMay: average high 83 °F, low 56 °F 83°56° MayJune: average high 89 °F, low 65 °F 89°65° JunJuly: average high 92 °F, low 69 °F 92°69° JulAugust: average high 91 °F, low 68 °F 91°68° AugSeptember: average high 85 °F, low 62 °F 85°62° SepOctober: average high 75 °F, low 50 °F 75°50° OctNovember: average high 64 °F, low 39 °F 64°39° NovDecember: average high 56 °F, low 34 °F 56°34° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 5.30 in precipitation 5.3 JanFebruary: 4.47 in precipitation 4.5 FebMarch: 5.44 in precipitation 5.4 MarApril: 3.82 in precipitation 3.8 AprMay: 3.31 in precipitation 3.3 MayJune: 4.32 in precipitation 4.3 JunJuly: 4.43 in precipitation 4.4 JulAugust: 4.56 in precipitation 4.6 AugSeptember: 3.73 in precipitation 3.7 SepOctober: 3.45 in precipitation 3.5 OctNovember: 3.65 in precipitation 3.6 NovDecember: 4.67 in precipitation 4.7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mcdonough 5 Ene, GA (10 mi away); precipitation: Mcdonough 5 Ene, GA (10 mi away). 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.

302348a
Jenkinsburg, GA · 5 mi
302538a
Mcdonough, GA · 8 mi
302338a
Jackson, GA · 9 mi
302528a
Mcdonough, GA · 9 mi
302848b
Sunny Side, GA · 10 mi
302238a
Griffin, GA · 11 mi
302128b
Experiment, GA · 12 mi
302288a
Hampton, GA · 12 mi

Georgia planting zones →

Questions about 30248

What planting zone is ZIP code 30248?

ZIP code 30248 (Locust Grove, 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 Locust Grove, GA?

The median last spring frost (32 °F) near 30248 is March 31; after April 16 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mcdonough 5 Ene station.

When is the first frost in Locust Grove, GA?

The median first fall frost near 30248 is November 6, giving a median frost-free growing season of 220 days.

When should I plant tomatoes in 30248?

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 30248 get?

About 51.1 inches of precipitation a year (NOAA 1991–2020 normals, Mcdonough 5 Ene station).

How hot do summers get in Locust Grove, 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 30248 have?

The USDA soil survey maps Cecil at the center of ZIP 30248: sandy loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Locust Grove, GA in 2026?

Spring leaf-out near 30248 came on Feb 14 in 2026, 5 days later than the 1991–2020 average (Feb 9), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Locust Grove, GA?

Intermediate onions: the longest day near 30248 is 14 h 22 min, so day-neutral types bulb best; long-day varieties may not bulb fully.