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

Planting zone for 40442 — Kings Mountain, KY

ZIP code 40442 (Kings Mountain, Lincoln County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 5 and the first fall frost October 30.

Where ZIP 40442 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 5
First frostOct 30
2012 zone6b

Was 6b 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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Kings Mountain, KY…

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 Kings Mountain, KY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 5median — 50% chance of a later frost
Safe for tender plantsApril 25only 10% chance of frost after
First fall frostOctober 30median — 10% chance by Oct 17
Growing season206 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 25 and returns around November 9.

From the NOAA station Somerset 2 N, KY — 17 miles away, elevation 1,020 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 40442

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 22 – Mar 8
SpinachSow outdoors · Feb 22 – Mar 15
Broccoli, cabbageStart indoors · Jan 25 – Feb 8
Broccoli, cabbageTransplant · Mar 15 – Mar 29
Onion setsPlant outdoors · Mar 8 – Mar 22
PotatoesPlant outdoors · Mar 15 – Mar 29
LettuceSow outdoors · Mar 8 – Mar 22
Carrots, beetsSow outdoors · Mar 15 – Mar 29
TomatoesStart indoors · Feb 8 – Feb 22
TomatoesTransplant · Apr 12 – Apr 26
Peppers, eggplantStart indoors · Jan 25 – Feb 8
Peppers, eggplantTransplant · Apr 19 – May 3
BeansSow outdoors · Apr 12 – Apr 26
Sweet cornSow outdoors · Apr 12 – Apr 26
Cucumbers, squashSow outdoors · Apr 12 – Apr 26
Fall lettuce, spinachSow outdoors · Sep 4 – Sep 18
GarlicPlant cloves · Oct 16 – Nov 20
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 5) and first fall frost (Oct 30) 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 40442 came on Mar 2 — 5 days earlier than the 1991–2020 average (Mar 7).

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 7a in Kentucky

547 plants native to the lower 48 states, recorded in Kentucky, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

Trees 78

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 109

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 181

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °FAmerican spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °F

Grasses 153

autumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fblister sedge3 ft · blooms late spring · medium shade tolerance · to −38 °Fbluejoint5 ft · blooms late spring · high shade tolerance · to −33 °F

Vines 14

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °F

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 Kings Mountain, KY.

Soil in Kings Mountain, KY

The soil mapped at the center of ZIP 40442 is Frankstown — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH5.6moderately acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Frankstown silt loam, 12 to 20 percent slopes.

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 40442; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kings Mountain, KY

Summer high87 °Faverage high, July
Winter low29 °Faverage low, January
Hot days21days a year at 90 °F or more
Freezing nights94nights a year at 32 °F or less
Growing degree days4,444base 50 °F — the season’s usable heat
Longest day14 h 44 mindaylight on June 21
Shortest day9 h 35 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation54.5 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 45 °F, low 29 °F 45°29° JanFebruary: average high 50 °F, low 32 °F 50°32° FebMarch: average high 59 °F, low 39 °F 59°39° MarApril: average high 70 °F, low 48 °F 70°48° AprMay: average high 77 °F, low 57 °F 77°57° MayJune: average high 84 °F, low 65 °F 84°65° JunJuly: average high 87 °F, low 69 °F 87°69° JulAugust: average high 86 °F, low 67 °F 86°67° AugSeptember: average high 81 °F, low 60 °F 81°60° SepOctober: average high 71 °F, low 48 °F 71°48° OctNovember: average high 59 °F, low 38 °F 59°38° NovDecember: average high 49 °F, low 33 °F 49°33° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.40 in precipitation 4.4 JanFebruary: 4.13 in precipitation 4.1 FebMarch: 4.97 in precipitation 5.0 MarApril: 4.82 in precipitation 4.8 AprMay: 5.46 in precipitation 5.5 MayJune: 5.31 in precipitation 5.3 JunJuly: 5.07 in precipitation 5.1 JulAugust: 3.66 in precipitation 3.7 AugSeptember: 4.22 in precipitation 4.2 SepOctober: 3.63 in precipitation 3.6 OctNovember: 3.78 in precipitation 3.8 NovDecember: 5.05 in precipitation 5.0 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Somerset 2 N, KY (17 mi away); precipitation: Liberty 1.1 Se, KY (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

425417a
Middleburg, KY · 4 mi
425667a
Yosemite, KY · 5 mi
404897a
Waynesburg, KY · 5 mi
404487a
Mc Kinney, KY · 8 mi
425167a
Bethelridge, KY · 8 mi
425677a
Eubank, KY · 9 mi
404377a
Hustonville, KY · 10 mi
425537a
Science Hill, KY · 11 mi

Kentucky planting zones →

Questions about 40442

What planting zone is ZIP code 40442?

ZIP code 40442 (Kings Mountain, KY) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Kings Mountain, KY?

The median last spring frost (32 °F) near 40442 is April 5; after April 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Somerset 2 N station.

When is the first frost in Kings Mountain, KY?

The median first fall frost near 40442 is October 30, giving a median frost-free growing season of 206 days.

When should I plant tomatoes in 40442?

Start tomato seeds indoors around Feb 8 – Feb 22 and set transplants outside around Apr 12 – Apr 26, one to three weeks after the median last frost.

How much rain and snow does 40442 get?

About 54.5 inches of precipitation a year (NOAA 1991–2020 normals, Liberty 1.1 Se station).

How hot do summers get in Kings Mountain, KY?

The average high peaks at 87 °F in July, with about 21 days a year at 90 °F or more.

What kind of soil does 40442 have?

The USDA soil survey maps Frankstown at the center of ZIP 40442: silt loam, well drained, pH about 5.6 (moderately acidic).

Did spring come early in Kings Mountain, KY in 2026?

Spring leaf-out near 40442 came on Mar 2 in 2026, 5 days earlier than the 1991–2020 average (Mar 7), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kings Mountain, KY?

Intermediate onions: the longest day near 40442 is 14 h 44 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 40442 change?

Yes. The 2012 USDA map put 40442 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.