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

Planting zone for 31028 — Centerville, GA

ZIP code 31028 (Centerville, Houston County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 21 and the first fall frost November 10.

Where ZIP 31028 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 21
First frostNov 10
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 Centerville, 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 Centerville, GA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 21median — 50% chance of a later frost
Safe for tender plantsApril 7only 10% chance of frost after
First fall frostNovember 10median — 10% chance by Oct 29
Growing season235 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 3 and returns around November 24.

From the NOAA station Macon Middle Ga Regional Airport, GA — 4 miles away, elevation 345 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 31028

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 7 – Feb 21
SpinachSow outdoors · Feb 7 – Feb 28
Broccoli, cabbageStart indoors · Jan 10 – Jan 24
Broccoli, cabbageTransplant · Feb 28 – Mar 14
Onion setsPlant outdoors · Feb 21 – Mar 7
PotatoesPlant outdoors · Feb 28 – Mar 14
LettuceSow outdoors · Feb 21 – Mar 7
Carrots, beetsSow outdoors · Feb 28 – Mar 14
TomatoesStart indoors · Jan 24 – Feb 7
TomatoesTransplant · Mar 28 – Apr 11
Peppers, eggplantStart indoors · Jan 10 – Jan 24
Peppers, eggplantTransplant · Apr 4 – Apr 18
BeansSow outdoors · Mar 28 – Apr 11
Sweet cornSow outdoors · Mar 28 – Apr 11
Cucumbers, squashSow outdoors · Mar 28 – Apr 11
Fall lettuce, spinachSow outdoors · Sep 15 – Sep 29
GarlicPlant cloves · Oct 27 – Dec 1
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 21) and first fall frost (Nov 10) 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 31028 came on Feb 11 — 8 days later than the 1991–2020 average (Feb 3).

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 Centerville, GA

The soil mapped at the center of ZIP 31028 is Orangeburg — loamy fine sand, well drained.

TextureLoamy fine sanddrains and warms fast; dries out and needs more feeding
pH5.3strongly 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: Orangeburg loamy fine sand, 2 to 5 percent slopes, 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 31028; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Centerville, GA

Summer high94 °Faverage high, July
Winter low36 °Faverage low, January
Hot days85days a year at 90 °F or more
Freezing nights44nights a year at 32 °F or less
Growing degree days6,077base 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
Precipitation49.9 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 59 °F, low 36 °F 59°36° JanFebruary: average high 63 °F, low 39 °F 63°39° FebMarch: average high 71 °F, low 45 °F 71°45° MarApril: average high 78 °F, low 51 °F 78°51° AprMay: average high 86 °F, low 60 °F 86°60° MayJune: average high 91 °F, low 68 °F 91°68° JunJuly: average high 94 °F, low 72 °F 94°72° JulAugust: average high 92 °F, low 71 °F 92°71° AugSeptember: average high 88 °F, low 65 °F 88°65° SepOctober: average high 79 °F, low 53 °F 79°53° OctNovember: average high 69 °F, low 43 °F 69°43° NovDecember: average high 61 °F, low 38 °F 61°38° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.55 in precipitation 4.5 JanFebruary: 4.61 in precipitation 4.6 FebMarch: 4.65 in precipitation 4.7 MarApril: 3.74 in precipitation 3.7 AprMay: 2.95 in precipitation 3.0 MayJune: 4.58 in precipitation 4.6 JunJuly: 5.05 in precipitation 5.0 JulAugust: 4.56 in precipitation 4.6 AugSeptember: 4.10 in precipitation 4.1 SepOctober: 3.04 in precipitation 3.0 OctNovember: 3.66 in precipitation 3.7 NovDecember: 4.41 in precipitation 4.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Macon Middle Ga Regional Airport, GA (4 mi away); precipitation: Warner Robins 0.3 W, GA (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

310938b
Warner Robins, GA · 2 mi
310998b
Warner Robins, GA · 2 mi
310888b
Warner Robins, GA · 4 mi
312978b
Macon, GA · 5 mi
310988b
Warner Robins, GA · 6 mi
310088b
Byron, GA · 6 mi
312168b
Macon, GA · 7 mi
310058b
Bonaire, GA · 8 mi

Georgia planting zones →

Questions about 31028

What planting zone is ZIP code 31028?

ZIP code 31028 (Centerville, 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 Centerville, GA?

The median last spring frost (32 °F) near 31028 is March 21; after April 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Macon Middle Ga Regional Airport station.

When is the first frost in Centerville, GA?

The median first fall frost near 31028 is November 10, giving a median frost-free growing season of 235 days.

When should I plant tomatoes in 31028?

Start tomato seeds indoors around Jan 24 – Feb 7 and set transplants outside around Mar 28 – Apr 11, one to three weeks after the median last frost.

How much rain and snow does 31028 get?

About 49.9 inches of precipitation a year (NOAA 1991–2020 normals, Warner Robins 0.3 W station).

How hot do summers get in Centerville, GA?

The average high peaks at 94 °F in July, with about 85 days a year at 90 °F or more.

What kind of soil does 31028 have?

The USDA soil survey maps Orangeburg at the center of ZIP 31028: loamy fine sand, well drained, pH about 5.3 (strongly acidic).

Did spring come early in Centerville, GA in 2026?

Spring leaf-out near 31028 came on Feb 11 in 2026, 8 days later than the 1991–2020 average (Feb 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Centerville, GA?

Short-day onions: the longest day near 31028 is 14 h 18 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 31028 change?

Yes. The 2012 USDA map put 31028 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.