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

Planting zone for 41366 — Rousseau, KY

ZIP code 41366 (Rousseau, Breathitt County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 6 and the first fall frost November 1.

Where ZIP 41366 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 6
First frostNov 1
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 Rousseau, 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 Rousseau, KY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 6median — 50% chance of a later frost
Safe for tender plantsApril 25only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 18
Growing season208 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 27 and returns around November 12.

From the NOAA station Jackson, KY — 6 miles away, elevation 1,365 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 41366

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 23 – Mar 9
SpinachSow outdoors · Feb 23 – Mar 16
Broccoli, cabbageStart indoors · Jan 26 – Feb 9
Broccoli, cabbageTransplant · Mar 16 – Mar 30
Onion setsPlant outdoors · Mar 9 – Mar 23
PotatoesPlant outdoors · Mar 16 – Mar 30
LettuceSow outdoors · Mar 9 – Mar 23
Carrots, beetsSow outdoors · Mar 16 – Mar 30
TomatoesStart indoors · Feb 9 – Feb 23
TomatoesTransplant · Apr 13 – Apr 27
Peppers, eggplantStart indoors · Jan 26 – Feb 9
Peppers, eggplantTransplant · Apr 20 – May 4
BeansSow outdoors · Apr 13 – Apr 27
Sweet cornSow outdoors · Apr 13 – Apr 27
Cucumbers, squashSow outdoors · Apr 13 – Apr 27
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 (Apr 6) 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 41366 came on Mar 2 — 6 days earlier than the 1991–2020 average (Mar 8).

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 Rousseau, KY.

Soil in Rousseau, KY

The soil mapped at the center of ZIP 41366 is Shelocta — channery loam, well drained.

TextureChannery loama good balance for most vegetables
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.75%moderate
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Shelocta-Gilpin-Kimper complex, 20 to 70 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 41366; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Rousseau, KY

Summer high85 °Faverage high, July
Winter low27 °Faverage low, January
Hot days14days a year at 90 °F or more
Freezing nights78nights a year at 32 °F or less
Growing degree days4,179base 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
Precipitation51.9 inper year, rain and melted snow
Snowfall23 inper year; 17 days with snow on the ground

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 44 °F, low 27 °F 44°27° JanFebruary: average high 49 °F, low 31 °F 49°31° FebMarch: average high 58 °F, low 38 °F 58°38° MarApril: average high 69 °F, low 47 °F 69°47° AprMay: average high 76 °F, low 56 °F 76°56° MayJune: average high 82 °F, low 63 °F 82°63° JunJuly: average high 85 °F, low 67 °F 85°67° JulAugust: average high 84 °F, low 65 °F 84°65° AugSeptember: average high 79 °F, low 59 °F 79°59° SepOctober: average high 69 °F, low 49 °F 69°49° OctNovember: average high 57 °F, low 39 °F 57°39° NovDecember: average high 48 °F, low 32 °F 48°32° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.96 in precipitation, 7.4 in snowfall 4.0❄7 JanFebruary: 4.06 in precipitation, 6.7 in snowfall 4.1❄7 FebMarch: 4.71 in precipitation, 4 in snowfall 4.7❄4 MarApril: 4.54 in precipitation, 0.4 in snowfall 4.5 AprMay: 5.17 in precipitation 5.2 MayJune: 5.25 in precipitation 5.3 JunJuly: 5.10 in precipitation 5.1 JulAugust: 4.26 in precipitation 4.3 AugSeptember: 3.42 in precipitation 3.4 SepOctober: 3.45 in precipitation, 0.1 in snowfall 3.5 OctNovember: 3.50 in precipitation, 0.7 in snowfall 3.5❄1 NovDecember: 4.47 in precipitation, 4.1 in snowfall 4.5❄4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Jackson, KY (6 mi away); precipitation: Jackson, KY (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

413107a
Bays, KY · 2 mi
413857a
Vancleve, KY · 6 mi
413397a
Jackson, KY · 8 mi
414657a
Salyersville, KY · 10 mi
413177a
Clayhole, KY · 11 mi
414087a
Cannel City, KY · 13 mi
413677a
Rowdy, KY · 14 mi
414647a
Royalton, KY · 15 mi

Kentucky planting zones →

Questions about 41366

What planting zone is ZIP code 41366?

ZIP code 41366 (Rousseau, 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 Rousseau, KY?

The median last spring frost (32 °F) near 41366 is April 6; after April 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Jackson station.

When is the first frost in Rousseau, KY?

The median first fall frost near 41366 is November 1, giving a median frost-free growing season of 208 days.

When should I plant tomatoes in 41366?

Start tomato seeds indoors around Feb 9 – Feb 23 and set transplants outside around Apr 13 – Apr 27, one to three weeks after the median last frost.

How much rain and snow does 41366 get?

About 51.9 inches of precipitation a year and 23 inches of snowfall (NOAA 1991–2020 normals, Jackson station).

How hot do summers get in Rousseau, KY?

The average high peaks at 85 °F in July, with about 14 days a year at 90 °F or more.

What kind of soil does 41366 have?

The USDA soil survey maps Shelocta at the center of ZIP 41366: channery loam, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Rousseau, KY in 2026?

Spring leaf-out near 41366 came on Mar 2 in 2026, 6 days earlier than the 1991–2020 average (Mar 8), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Rousseau, KY?

Intermediate onions: the longest day near 41366 is 14 h 46 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 41366 change?

Yes. The 2012 USDA map put 41366 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.