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

Planting zone for 41649 — Martin, KY

ZIP code 41649 (Martin, Floyd County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 23 and the first fall frost October 23.

Where ZIP 41649 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 23
First frostOct 23
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 Martin, 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 Martin, KY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 23median — 50% chance of a later frost
Safe for tender plantsMay 10only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 8
Growing season183 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 9 and returns around November 1.

From the NOAA station Prestonsburg 3wsw, KY — 6 miles away, elevation 761 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 41649

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 12 – Mar 26
SpinachSow outdoors · Mar 12 – Apr 2
Broccoli, cabbageStart indoors · Feb 12 – Feb 26
Broccoli, cabbageTransplant · Apr 2 – Apr 16
Onion setsPlant outdoors · Mar 26 – Apr 9
PotatoesPlant outdoors · Apr 2 – Apr 16
LettuceSow outdoors · Mar 26 – Apr 9
Carrots, beetsSow outdoors · Apr 2 – Apr 16
TomatoesStart indoors · Feb 26 – Mar 12
TomatoesTransplant · Apr 30 – May 14
Peppers, eggplantStart indoors · Feb 12 – Feb 26
Peppers, eggplantTransplant · May 7 – May 21
BeansSow outdoors · Apr 30 – May 14
Sweet cornSow outdoors · Apr 30 – May 14
Cucumbers, squashSow outdoors · Apr 30 – May 14
Fall lettuce, spinachSow outdoors · Aug 28 – Sep 11
GarlicPlant cloves · Oct 9 – Nov 13
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 23) and first fall frost (Oct 23) 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 41649 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).

Soil in Martin, KY

The soil mapped at the center of ZIP 41649 is Cloverlick — channery slightly decomposed plant material, well drained.

TextureChannery slightly decomposed plant materialtop layer
pH4.9strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter69.7%high
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Cloverlick-Shelocta-Kimper complex, 20 to 80 percent slopes, very stony.

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 41649; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Martin, KY

Summer high86 °Faverage high, July
Winter low23 °Faverage low, January
Hot days25days a year at 90 °F or more
Freezing nights106nights a year at 32 °F or less
Growing degree days3,611base 50 °F — the season’s usable heat
Longest day14 h 46 mindaylight on June 21
Shortest day9 h 34 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation47.6 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 44 °F, low 23 °F 44°23° JanFebruary: average high 48 °F, low 26 °F 48°26° FebMarch: average high 57 °F, low 31 °F 57°31° MarApril: average high 70 °F, low 40 °F 70°40° AprMay: average high 76 °F, low 51 °F 76°51° MayJune: average high 83 °F, low 60 °F 83°60° JunJuly: average high 86 °F, low 64 °F 86°64° JulAugust: average high 85 °F, low 63 °F 85°63° AugSeptember: average high 79 °F, low 57 °F 79°57° SepOctober: average high 68 °F, low 44 °F 68°44° OctNovember: average high 57 °F, low 32 °F 57°32° NovDecember: average high 47 °F, low 27 °F 47°27° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 3.57 in precipitation 3.6 JanFebruary: 3.97 in precipitation 4.0 FebMarch: 4.16 in precipitation 4.2 MarApril: 4.23 in precipitation 4.2 AprMay: 4.62 in precipitation 4.6 MayJune: 5.13 in precipitation 5.1 JunJuly: 4.49 in precipitation 4.5 JulAugust: 3.61 in precipitation 3.6 AugSeptember: 3.41 in precipitation 3.4 SepOctober: 3.19 in precipitation 3.2 OctNovember: 2.86 in precipitation 2.9 NovDecember: 4.33 in precipitation 4.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Prestonsburg 3wsw, KY (6 mi away); precipitation: Martin 1 S, KY (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

416457a
Langley, KY · 3 mi
416037a
Banner, KY · 4 mi
416017a
Allen, KY · 4 mi
416227a
Eastern, KY · 4 mi
416557a
Printer, KY · 5 mi
416217a
Dwale, KY · 5 mi
416157a
Dana, KY · 5 mi
416167a
David, KY · 6 mi

Kentucky planting zones →

Questions about 41649

What planting zone is ZIP code 41649?

ZIP code 41649 (Martin, 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 Martin, KY?

The median last spring frost (32 °F) near 41649 is April 23; after May 10 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Prestonsburg 3wsw station.

When is the first frost in Martin, KY?

The median first fall frost near 41649 is October 23, giving a median frost-free growing season of 183 days.

When should I plant tomatoes in 41649?

Start tomato seeds indoors around Feb 26 – Mar 12 and set transplants outside around Apr 30 – May 14, one to three weeks after the median last frost.

How much rain and snow does 41649 get?

About 47.6 inches of precipitation a year (NOAA 1991–2020 normals, Martin 1 S station).

How hot do summers get in Martin, KY?

The average high peaks at 86 °F in July, with about 25 days a year at 90 °F or more.

What kind of soil does 41649 have?

The USDA soil survey maps Cloverlick at the center of ZIP 41649: channery slightly decomposed plant material, well drained, pH about 4.9 (strongly acidic).

Did spring come early in Martin, KY in 2026?

Spring leaf-out near 41649 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 Martin, KY?

Intermediate onions: the longest day near 41649 is 14 h 46 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 41649 change?

Yes. The 2012 USDA map put 41649 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.