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

Planting zone for 39366 — Vossburg, MS

ZIP code 39366 (Vossburg, Jasper County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 14 and the first fall frost November 16.

Where ZIP 39366 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 14

First frostNov 16

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 Vossburg, MS…

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 Vossburg, MS

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 14median — 50% chance of a later frost

Safe for tender plantsApril 1only 10% chance of frost after

First fall frostNovember 16median — 10% chance by Oct 31

Growing season247 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 28 and returns around November 29.

From the NOAA station P Harrison Archusa, MS — 13 miles away, elevation 217 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 39366

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 31 – Feb 14

SpinachSow outdoors · Jan 31 – Feb 21

Broccoli, cabbageStart indoors · Jan 3 – Jan 17

Broccoli, cabbageTransplant · Feb 21 – Mar 7

Onion setsPlant outdoors · Feb 14 – Feb 28

PotatoesPlant outdoors · Feb 21 – Mar 7

LettuceSow outdoors · Feb 14 – Feb 28

Carrots, beetsSow outdoors · Feb 21 – Mar 7

TomatoesStart indoors · Jan 17 – Jan 31

TomatoesTransplant · Mar 21 – Apr 4

Peppers, eggplantStart indoors · Jan 3 – Jan 17

Peppers, eggplantTransplant · Mar 28 – Apr 11

BeansSow outdoors · Mar 21 – Apr 4

Sweet cornSow outdoors · Mar 21 – Apr 4

Cucumbers, squashSow outdoors · Mar 21 – Apr 4

Fall lettuce, spinachSow outdoors · Sep 21 – Oct 5

GarlicPlant cloves · Nov 2 – Dec 7

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 14) and first fall frost (Nov 16) 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 39366 came on Feb 10 — 7 days later than the 1991–2020 average (Feb 3).

average
Feb 32026
Feb 10

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 Mississippi

526 plants native to the lower 48 states, recorded in Mississippi, 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 Vossburg, MS.

Soil in Vossburg, MS

The soil mapped at the center of ZIP 39366 is Vaiden — clay, somewhat poorly drained.

TextureClayholds water and nutrients; slow to drain and warm up

pH5.5moderately acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter1.25%low — add compost

Hydrologic groupDwater soaks in very slowly

Farmland classprime farmlandUSDA classification

Map unit: Vaiden clay, deep, 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 39366; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Vossburg, MS

Summer high92 °Faverage high, July

Winter low36 °Faverage low, January

Hot days78days a year at 90 °F or more

Freezing nights46nights a year at 32 °F or less

Growing degree days6,042base 50 °F — the season’s usable heat

Longest day14 h 14 mindaylight on June 21

Shortest day10 h 03 mindaylight on December 21

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

Precipitation61.5 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: P Harrison Archusa, MS (13 mi away); precipitation: P Harrison Archusa, MS (13 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

394398b

Heidelberg, MS · 8 mi

Stonewall, MS · 13 mi

394778b

Sandersville, MS · 13 mi

393568b

Rose Hill, MS · 15 mi

393308b

Enterprise, MS · 17 mi

Mississippi planting zones →

Questions about 39366

What planting zone is ZIP code 39366?

ZIP code 39366 (Vossburg, MS) 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 Vossburg, MS?

The median last spring frost (32 °F) near 39366 is March 14; after April 1 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, P Harrison Archusa station.

When is the first frost in Vossburg, MS?

The median first fall frost near 39366 is November 16, giving a median frost-free growing season of 247 days.

When should I plant tomatoes in 39366?

Start tomato seeds indoors around Jan 17 – Jan 31 and set transplants outside around Mar 21 – Apr 4, one to three weeks after the median last frost.

How much rain and snow does 39366 get?

About 61.5 inches of precipitation a year (NOAA 1991–2020 normals, P Harrison Archusa station).

How hot do summers get in Vossburg, MS?

The average high peaks at 92 °F in July, with about 78 days a year at 90 °F or more.

What kind of soil does 39366 have?

The USDA soil survey maps Vaiden at the center of ZIP 39366: clay, somewhat poorly drained, pH about 5.5 (moderately acidic).

Did spring come early in Vossburg, MS in 2026?

Spring leaf-out near 39366 came on Feb 10 in 2026, 7 days later than the 1991–2020 average (Feb 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Vossburg, MS?

Short-day onions: the longest day near 39366 is 14 h 14 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 39366 change?

Yes. The 2012 USDA map put 39366 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.