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

Planting zone for 31033 — Haddock, GA

ZIP code 31033 (Haddock, Jones County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 25 and the first fall frost November 9.

Where ZIP 31033 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 25
First frostNov 9
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 Haddock, 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 Haddock, GA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 25median — 50% chance of a later frost
Safe for tender plantsApril 9only 10% chance of frost after
First fall frostNovember 9median — 10% chance by Oct 29
Growing season231 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 9 and returns around November 21.

From the NOAA station Milledgeville, GA — 11 miles away, elevation 367 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 31033

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 11 – Feb 25
SpinachSow outdoors · Feb 11 – Mar 4
Broccoli, cabbageStart indoors · Jan 14 – Jan 28
Broccoli, cabbageTransplant · Mar 4 – Mar 18
Onion setsPlant outdoors · Feb 25 – Mar 11
PotatoesPlant outdoors · Mar 4 – Mar 18
LettuceSow outdoors · Feb 25 – Mar 11
Carrots, beetsSow outdoors · Mar 4 – Mar 18
TomatoesStart indoors · Jan 28 – Feb 11
TomatoesTransplant · Apr 1 – Apr 15
Peppers, eggplantStart indoors · Jan 14 – Jan 28
Peppers, eggplantTransplant · Apr 8 – Apr 22
BeansSow outdoors · Apr 1 – Apr 15
Sweet cornSow outdoors · Apr 1 – Apr 15
Cucumbers, squashSow outdoors · Apr 1 – Apr 15
Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28
GarlicPlant cloves · Oct 26 – Nov 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 25) and first fall frost (Nov 9) 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 31033 came on Feb 14 — 9 days later than the 1991–2020 average (Feb 5).

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 Haddock, GA

The soil mapped at the center of ZIP 31033 is Cecil — sandy clay loam, well drained.

TextureSandy clay loamholds water and nutrients; slow to drain and warm up
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 sandy clay loam, 6 to 10 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 31033; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Haddock, GA

Summer high93 °Faverage high, July
Winter low33 °Faverage low, January
Hot days78days a year at 90 °F or more
Freezing nights60nights a year at 32 °F or less
Growing degree days5,652base 50 °F — the season’s usable heat
Longest day14 h 20 mindaylight on June 21
Shortest day9 h 58 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation48.2 inper year, rain and melted snow
Snowfall1 inper year

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 58 °F, low 33 °F 58°33° JanFebruary: average high 62 °F, low 36 °F 62°36° FebMarch: average high 69 °F, low 42 °F 69°42° MarApril: average high 77 °F, low 49 °F 77°49° AprMay: average high 84 °F, low 58 °F 84°58° MayJune: average high 90 °F, low 67 °F 90°67° JunJuly: average high 93 °F, low 70 °F 93°70° JulAugust: average high 91 °F, low 70 °F 91°70° AugSeptember: average high 86 °F, low 64 °F 86°64° SepOctober: average high 78 °F, low 52 °F 78°52° OctNovember: average high 68 °F, low 41 °F 68°41° NovDecember: average high 60 °F, low 36 °F 60°36° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 4.23 in precipitation, 0.3 in snowfall 4.2 JanFebruary: 4.06 in precipitation, 0.2 in snowfall 4.1 FebMarch: 4.75 in precipitation 4.8 MarApril: 3.90 in precipitation 3.9 AprMay: 3.16 in precipitation 3.2 MayJune: 4.30 in precipitation 4.3 JunJuly: 4.16 in precipitation 4.2 JulAugust: 4.73 in precipitation 4.7 AugSeptember: 4.22 in precipitation 4.2 SepOctober: 2.83 in precipitation 2.8 OctNovember: 3.36 in precipitation 3.4 NovDecember: 4.49 in precipitation, 0.1 in snowfall 4.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Milledgeville, GA (11 mi away); precipitation: Milledgeville, GA (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

310328b
Gray, GA · 9 mi
310598b
Milledgeville, GA · 11 mi
310388b
Hillsboro, GA · 12 mi
310618b
Milledgeville, GA · 12 mi
310348b
Hardwick, GA · 12 mi
312118b
Macon, GA · 15 mi
310318b
Gordon, GA · 16 mi
312178b
Macon, GA · 17 mi

Georgia planting zones →

Questions about 31033

What planting zone is ZIP code 31033?

ZIP code 31033 (Haddock, 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 Haddock, GA?

The median last spring frost (32 °F) near 31033 is March 25; after April 9 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Milledgeville station.

When is the first frost in Haddock, GA?

The median first fall frost near 31033 is November 9, giving a median frost-free growing season of 231 days.

When should I plant tomatoes in 31033?

Start tomato seeds indoors around Jan 28 – Feb 11 and set transplants outside around Apr 1 – Apr 15, one to three weeks after the median last frost.

How much rain and snow does 31033 get?

About 48.2 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Milledgeville station).

How hot do summers get in Haddock, GA?

The average high peaks at 93 °F in July, with about 78 days a year at 90 °F or more.

What kind of soil does 31033 have?

The USDA soil survey maps Cecil at the center of ZIP 31033: sandy clay loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Haddock, GA in 2026?

Spring leaf-out near 31033 came on Feb 14 in 2026, 9 days later than the 1991–2020 average (Feb 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Haddock, GA?

Intermediate onions: the longest day near 31033 is 14 h 20 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 31033 change?

Yes. The 2012 USDA map put 31033 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.