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

Planting zone for 38359 — Milledgeville, TN

ZIP code 38359 (Milledgeville, McNairy County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is March 31 and the first fall frost November 1.

Where ZIP 38359 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.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostMar 31
First frostNov 1
2012 zone7b

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Milledgeville, TN…

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 Milledgeville, TN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 31median — 50% chance of a later frost
Safe for tender plantsApril 15only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 18
Growing season212 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 18 and returns around November 11.

From the NOAA station Savannah 6 Sw, TN — 16 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 38359

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 17 – Mar 3
SpinachSow outdoors · Feb 17 – Mar 10
Broccoli, cabbageStart indoors · Jan 20 – Feb 3
Broccoli, cabbageTransplant · Mar 10 – Mar 24
Onion setsPlant outdoors · Mar 3 – Mar 17
PotatoesPlant outdoors · Mar 10 – Mar 24
LettuceSow outdoors · Mar 3 – Mar 17
Carrots, beetsSow outdoors · Mar 10 – Mar 24
TomatoesStart indoors · Feb 3 – Feb 17
TomatoesTransplant · Apr 7 – Apr 21
Peppers, eggplantStart indoors · Jan 20 – Feb 3
Peppers, eggplantTransplant · Apr 14 – Apr 28
BeansSow outdoors · Apr 7 – Apr 21
Sweet cornSow outdoors · Apr 7 – Apr 21
Cucumbers, squashSow outdoors · Apr 7 – Apr 21
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 1) 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 38359 came on Feb 19 — about the same time as the 1991–2020 average (Feb 20).

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 Milledgeville, TN

The soil mapped at the center of ZIP 38359 is Freeland — loam, moderately well drained.

TextureLoama good balance for most vegetables
pH5.8moderately acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Freeland loam, 2 to 5 percent slopes, severely 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 38359; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Milledgeville, TN

Summer high91 °Faverage high, July
Winter low30 °Faverage low, January
Hot days66days a year at 90 °F or more
Freezing nights72nights a year at 32 °F or less
Growing degree days5,231base 50 °F — the season’s usable heat
Longest day14 h 33 mindaylight on June 21
Shortest day9 h 46 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation58.2 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 51 °F, low 30 °F 51°30° JanFebruary: average high 56 °F, low 33 °F 56°33° FebMarch: average high 65 °F, low 40 °F 65°40° MarApril: average high 74 °F, low 49 °F 74°49° AprMay: average high 81 °F, low 59 °F 81°59° MayJune: average high 88 °F, low 67 °F 88°67° JunJuly: average high 91 °F, low 70 °F 91°70° JulAugust: average high 91 °F, low 69 °F 91°69° AugSeptember: average high 86 °F, low 61 °F 86°61° SepOctober: average high 76 °F, low 49 °F 76°49° OctNovember: average high 64 °F, low 40 °F 64°40° NovDecember: average high 54 °F, low 34 °F 54°34° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.44 in precipitation 4.4 JanFebruary: 5.03 in precipitation 5.0 FebMarch: 5.55 in precipitation 5.5 MarApril: 5.52 in precipitation 5.5 AprMay: 5.68 in precipitation 5.7 MayJune: 4.83 in precipitation 4.8 JunJuly: 4.79 in precipitation 4.8 JulAugust: 3.77 in precipitation 3.8 AugSeptember: 4.49 in precipitation 4.5 SepOctober: 4.20 in precipitation 4.2 OctNovember: 4.32 in precipitation 4.3 NovDecember: 5.62 in precipitation 5.6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Savannah 6 Sw, TN (16 mi away); precipitation: Finger 4.1 Ene, TN (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

383717b
Sardis, TN · 5 mi
383617b
Morris Chapel, TN · 5 mi
383327b
Enville, TN · 6 mi
383707b
Saltillo, TN · 6 mi
383107b
Adamsville, TN · 8 mi
383687b
Reagan, TN · 9 mi
383277b
Crump, TN · 11 mi
383477b
Jacks Creek, TN · 11 mi

Tennessee planting zones →

Questions about 38359

What planting zone is ZIP code 38359?

ZIP code 38359 (Milledgeville, TN) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Milledgeville, TN?

The median last spring frost (32 °F) near 38359 is March 31; after April 15 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Savannah 6 Sw station.

When is the first frost in Milledgeville, TN?

The median first fall frost near 38359 is November 1, giving a median frost-free growing season of 212 days.

When should I plant tomatoes in 38359?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 38359 get?

About 58.2 inches of precipitation a year (NOAA 1991–2020 normals, Finger 4.1 Ene station).

How hot do summers get in Milledgeville, TN?

The average high peaks at 91 °F in July, with about 66 days a year at 90 °F or more.

What kind of soil does 38359 have?

The USDA soil survey maps Freeland at the center of ZIP 38359: loam, moderately well drained, pH about 5.8 (moderately acidic).

Did spring come early in Milledgeville, TN in 2026?

Spring leaf-out near 38359 came on Feb 19 in 2026, about the same as the 1991–2020 average (Feb 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Milledgeville, TN?

Intermediate onions: the longest day near 38359 is 14 h 33 min, so day-neutral types bulb best; long-day varieties may not bulb fully.