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

Planting zone for 31047 — Kathleen, GA

ZIP code 31047 (Kathleen, Houston County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 11 and the first fall frost November 19.

Where ZIP 31047 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 11

First frostNov 19

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 Kathleen, 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 Kathleen, GA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 11median — 50% chance of a later frost

Safe for tender plantsMarch 31only 10% chance of frost after

First fall frostNovember 19median — 10% chance by Nov 4

Growing season256 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 24 and returns around December 4.

From the NOAA station Warner Robins, GA — 10 miles away, elevation 420 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 31047

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 28 – Feb 11

SpinachSow outdoors · Jan 28 – Feb 18

Broccoli, cabbageStart indoors · Dec 31 – Jan 14

Broccoli, cabbageTransplant · Feb 18 – Mar 4

Onion setsPlant outdoors · Feb 11 – Feb 25

PotatoesPlant outdoors · Feb 18 – Mar 4

LettuceSow outdoors · Feb 11 – Feb 25

Carrots, beetsSow outdoors · Feb 18 – Mar 4

TomatoesStart indoors · Jan 14 – Jan 28

TomatoesTransplant · Mar 18 – Apr 1

Peppers, eggplantStart indoors · Dec 31 – Jan 14

Peppers, eggplantTransplant · Mar 25 – Apr 8

BeansSow outdoors · Mar 18 – Apr 1

Sweet cornSow outdoors · Mar 18 – Apr 1

Cucumbers, squashSow outdoors · Mar 18 – Apr 1

Fall lettuce, spinachSow outdoors · Sep 24 – Oct 8

GarlicPlant cloves · Nov 5 – Dec 10

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 11) and first fall frost (Nov 19) 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 31047 came on Feb 11 — 9 days later than the 1991–2020 average (Feb 2).

average
Feb 22026
Feb 11

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 Kathleen, GA.

Soil in Kathleen, GA

The soil mapped at the center of ZIP 31047 is Greenville — fine sandy loam, well drained.

TextureFine sandy loamdrains 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: Greenville fine sandy loam, 5 to 8 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 31047; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kathleen, GA

Summer high91 °Faverage high, July

Winter low36 °Faverage low, January

Hot days76days a year at 90 °F or more

Freezing nights40nights a year at 32 °F or less

Growing degree days5,947base 50 °F — the season’s usable heat

Longest day14 h 17 mindaylight on June 21

Shortest day10 h 01 mindaylight on December 21

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

Precipitation49.5 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: Warner Robins, GA (10 mi away); precipitation: Kathleen 2.5 Nw, GA (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

310958b

Warner Robins, GA · 5 mi

310058b

Bonaire, GA · 5 mi

310888b

Warner Robins, GA · 9 mi

310698b

Perry, GA · 10 mi

310988b

Warner Robins, GA · 10 mi

310138b

Clinchfield, GA · 11 mi

310288b

Centerville, GA · 13 mi

310258b

Elko, GA · 13 mi

Georgia planting zones →

Questions about 31047

What planting zone is ZIP code 31047?

ZIP code 31047 (Kathleen, 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 Kathleen, GA?

The median last spring frost (32 °F) near 31047 is March 11; after March 31 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Warner Robins station.

When is the first frost in Kathleen, GA?

The median first fall frost near 31047 is November 19, giving a median frost-free growing season of 256 days.

When should I plant tomatoes in 31047?

Start tomato seeds indoors around Jan 14 – Jan 28 and set transplants outside around Mar 18 – Apr 1, one to three weeks after the median last frost.

How much rain and snow does 31047 get?

About 49.5 inches of precipitation a year (NOAA 1991–2020 normals, Kathleen 2.5 Nw station).

How hot do summers get in Kathleen, GA?

The average high peaks at 91 °F in July, with about 76 days a year at 90 °F or more.

What kind of soil does 31047 have?

The USDA soil survey maps Greenville at the center of ZIP 31047: fine sandy loam, well drained, pH about 5.3 (strongly acidic).

Did spring come early in Kathleen, GA in 2026?

Spring leaf-out near 31047 came on Feb 11 in 2026, 9 days later than the 1991–2020 average (Feb 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kathleen, GA?

Short-day onions: the longest day near 31047 is 14 h 17 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 31047 change?

Yes. The 2012 USDA map put 31047 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.