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

Planting zone for 30655 — Monroe, GA

ZIP code 30655 (Monroe, Walton County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is April 3 and the first fall frost November 7.

Where ZIP 30655 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 frostApr 3

First frostNov 7

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 Monroe, 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 Monroe, GA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 3median — 50% chance of a later frost

Safe for tender plantsApril 17only 10% chance of frost after

First fall frostNovember 7median — 10% chance by Oct 27

Growing season219 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 22 and returns around November 20.

From the NOAA station Winder 4s, GA — 11 miles away, elevation 889 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 30655

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 20 – Mar 6

SpinachSow outdoors · Feb 20 – Mar 13

Broccoli, cabbageStart indoors · Jan 23 – Feb 6

Broccoli, cabbageTransplant · Mar 13 – Mar 27

Onion setsPlant outdoors · Mar 6 – Mar 20

PotatoesPlant outdoors · Mar 13 – Mar 27

LettuceSow outdoors · Mar 6 – Mar 20

Carrots, beetsSow outdoors · Mar 13 – Mar 27

TomatoesStart indoors · Feb 6 – Feb 20

TomatoesTransplant · Apr 10 – Apr 24

Peppers, eggplantStart indoors · Jan 23 – Feb 6

Peppers, eggplantTransplant · Apr 17 – May 1

BeansSow outdoors · Apr 10 – Apr 24

Sweet cornSow outdoors · Apr 10 – Apr 24

Cucumbers, squashSow outdoors · Apr 10 – Apr 24

Fall lettuce, spinachSow outdoors · Sep 12 – Sep 26

GarlicPlant cloves · Oct 24 – Nov 28

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 3) and first fall frost (Nov 7) 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 30655 came on Feb 16 — 5 days later than the 1991–2020 average (Feb 11).

average
Feb 112026
Feb 16

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 Monroe, GA

The soil mapped at the center of ZIP 30655 is Toccoa — sandy loam, moderately well drained.

TextureSandy loamdrains and warms fast; dries out and needs more feeding

pH5.8moderately acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter1.5%low — add compost

Hydrologic groupAwater soaks in fast

Farmland classFarmland of statewide importanceUSDA classification

Map unit: Local alluvial land (Toccoa).

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 30655; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Monroe, GA

Summer high89 °Faverage high, July

Winter low32 °Faverage low, January

Hot days38days a year at 90 °F or more

Freezing nights59nights a year at 32 °F or less

Growing degree days4,868base 50 °F — the season’s usable heat

Longest day14 h 24 mindaylight on June 21

Shortest day9 h 54 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation50.9 inper year, rain and melted snow

Snowfall1 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Winder 4s, GA (11 mi away); precipitation: Winder 4s, GA (11 mi away). 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.

Social Circle, GA · 9 mi

306458a

High Shoals, GA · 10 mi

306238a

Bostwick, GA · 11 mi

306208a

Bethlehem, GA · 11 mi

300528a

Loganville, GA · 12 mi

All 2 ZIP codes in Monroe → · Georgia planting zones →

Questions about 30655

What planting zone is ZIP code 30655?

ZIP code 30655 (Monroe, 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 Monroe, GA?

The median last spring frost (32 °F) near 30655 is April 3; after April 17 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Winder 4s station.

When is the first frost in Monroe, GA?

The median first fall frost near 30655 is November 7, giving a median frost-free growing season of 219 days.

When should I plant tomatoes in 30655?

Start tomato seeds indoors around Feb 6 – Feb 20 and set transplants outside around Apr 10 – Apr 24, one to three weeks after the median last frost.

How much rain and snow does 30655 get?

About 50.9 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Winder 4s station).

How hot do summers get in Monroe, GA?

The average high peaks at 89 °F in July, with about 38 days a year at 90 °F or more.

What kind of soil does 30655 have?

The USDA soil survey maps Toccoa at the center of ZIP 30655: sandy loam, moderately well drained, pH about 5.8 (moderately acidic).

Did spring come early in Monroe, GA in 2026?

Spring leaf-out near 30655 came on Feb 16 in 2026, 5 days later than the 1991–2020 average (Feb 11), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Monroe, GA?

Intermediate onions: the longest day near 30655 is 14 h 24 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 30655 change?

Yes. The 2012 USDA map put 30655 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.