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

Planting zone for 38468 — Leoma, TN

ZIP code 38468 (Leoma, Lawrence County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 8 and the first fall frost October 31.

Where ZIP 38468 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 frostApr 8
First frostOct 31
2012 zone7a

Was 7a 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 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Leoma, 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 Leoma, TN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 8median — 50% chance of a later frost
Safe for tender plantsApril 26only 10% chance of frost after
First fall frostOctober 31median — 10% chance by Oct 18
Growing season204 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 26 and returns around November 7.

From the NOAA station Lawrenceburg Filt Plt, TN — 8 miles away, elevation 869 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 38468

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 25 – Mar 11
SpinachSow outdoors · Feb 25 – Mar 18
Broccoli, cabbageStart indoors · Jan 28 – Feb 11
Broccoli, cabbageTransplant · Mar 18 – Apr 1
Onion setsPlant outdoors · Mar 11 – Mar 25
PotatoesPlant outdoors · Mar 18 – Apr 1
LettuceSow outdoors · Mar 11 – Mar 25
Carrots, beetsSow outdoors · Mar 18 – Apr 1
TomatoesStart indoors · Feb 11 – Feb 25
TomatoesTransplant · Apr 15 – Apr 29
Peppers, eggplantStart indoors · Jan 28 – Feb 11
Peppers, eggplantTransplant · Apr 22 – May 6
BeansSow outdoors · Apr 15 – Apr 29
Sweet cornSow outdoors · Apr 15 – Apr 29
Cucumbers, squashSow outdoors · Apr 15 – Apr 29
Fall lettuce, spinachSow outdoors · Sep 5 – Sep 19
GarlicPlant cloves · Oct 17 – Nov 21
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 8) and first fall frost (Oct 31) 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 38468 came on Feb 20 — 3 days earlier than the 1991–2020 average (Feb 23).

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 Leoma, TN

The soil mapped at the center of ZIP 38468 is Sugargrove — gravelly silt loam, well drained.

TextureGravelly silt loama good balance for most vegetables
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupBwater soaks in moderately
Farmland classprime farmlandUSDA classification

Map unit: Mountview silt loam, eroded, gently sloping shallow phase.

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 38468; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Leoma, TN

Summer high88 °Faverage high, July
Winter low28 °Faverage low, January
Hot days35days a year at 90 °F or more
Freezing nights81nights a year at 32 °F or less
Growing degree days4,476base 50 °F — the season’s usable heat
Longest day14 h 31 mindaylight on June 21
Shortest day9 h 47 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation58.8 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 49 °F, low 28 °F 49°28° JanFebruary: average high 53 °F, low 31 °F 53°31° FebMarch: average high 62 °F, low 38 °F 62°38° MarApril: average high 71 °F, low 46 °F 71°46° AprMay: average high 78 °F, low 56 °F 78°56° MayJune: average high 85 °F, low 64 °F 85°64° JunJuly: average high 88 °F, low 68 °F 88°68° JulAugust: average high 88 °F, low 66 °F 88°66° AugSeptember: average high 83 °F, low 59 °F 83°59° SepOctober: average high 73 °F, low 47 °F 73°47° OctNovember: average high 61 °F, low 37 °F 61°37° NovDecember: average high 51 °F, low 31 °F 51°31° Dec

Precipitation by month inches

0″2″4″6″January: 4.77 in precipitation 4.8 JanFebruary: 5.49 in precipitation 5.5 FebMarch: 5.78 in precipitation 5.8 MarApril: 5.24 in precipitation 5.2 AprMay: 5.82 in precipitation 5.8 MayJune: 5.20 in precipitation 5.2 JunJuly: 4.39 in precipitation 4.4 JulAugust: 4.05 in precipitation 4.0 AugSeptember: 3.67 in precipitation 3.7 SepOctober: 4.27 in precipitation 4.3 OctNovember: 3.96 in precipitation 4.0 NovDecember: 6.14 in precipitation 6.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Lawrenceburg Filt Plt, TN (8 mi away); precipitation: Loretto 5.2 Ne, TN (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

384577b
Five Points, TN · 7 mi
384607b
Goodspring, TN · 8 mi
384697b
Loretto, TN · 9 mi
384737b
Minor Hill, TN · 10 mi
356107b
Anderson, AL · 13 mi
356487b
Lexington, AL · 13 mi
384647b
Lawrenceburg, TN · 13 mi
384817b
Saint Joseph, TN · 13 mi

Tennessee planting zones →

Questions about 38468

What planting zone is ZIP code 38468?

ZIP code 38468 (Leoma, 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 Leoma, TN?

The median last spring frost (32 °F) near 38468 is April 8; after April 26 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Lawrenceburg Filt Plt station.

When is the first frost in Leoma, TN?

The median first fall frost near 38468 is October 31, giving a median frost-free growing season of 204 days.

When should I plant tomatoes in 38468?

Start tomato seeds indoors around Feb 11 – Feb 25 and set transplants outside around Apr 15 – Apr 29, one to three weeks after the median last frost.

How much rain and snow does 38468 get?

About 58.8 inches of precipitation a year (NOAA 1991–2020 normals, Loretto 5.2 Ne station).

How hot do summers get in Leoma, TN?

The average high peaks at 88 °F in July, with about 35 days a year at 90 °F or more.

What kind of soil does 38468 have?

The USDA soil survey maps Sugargrove at the center of ZIP 38468: gravelly silt loam, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Leoma, TN in 2026?

Spring leaf-out near 38468 came on Feb 20 in 2026, 3 days earlier than the 1991–2020 average (Feb 23), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Leoma, TN?

Intermediate onions: the longest day near 38468 is 14 h 31 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 38468 change?

Yes. The 2012 USDA map put 38468 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.