Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 40023 — Fisherville, KY

ZIP code 40023 (Fisherville, Jefferson County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is May 1 and the first fall frost October 10.

Where ZIP 40023 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 frostMay 1

First frostOct 10

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 Fisherville, 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 Fisherville, KY

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMay 1median — 50% chance of a later frost

Safe for tender plantsMay 15only 10% chance of frost after

First fall frostOctober 10median — 10% chance by Sep 24

Growing season161 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 24 and returns around October 21.

From the NOAA station Shelbyville 1 E, KY — 12 miles away, elevation 732 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 40023

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 20 – Apr 3

SpinachSow outdoors · Mar 20 – Apr 10

Broccoli, cabbageStart indoors · Feb 20 – Mar 6

Broccoli, cabbageTransplant · Apr 10 – Apr 24

Onion setsPlant outdoors · Apr 3 – Apr 17

PotatoesPlant outdoors · Apr 10 – Apr 24

LettuceSow outdoors · Apr 3 – Apr 17

Carrots, beetsSow outdoors · Apr 10 – Apr 24

TomatoesStart indoors · Mar 6 – Mar 20

TomatoesTransplant · May 8 – May 22

Peppers, eggplantStart indoors · Feb 20 – Mar 6

Peppers, eggplantTransplant · May 15 – May 29

BeansSow outdoors · May 8 – May 22

Sweet cornSow outdoors · May 8 – May 22

Cucumbers, squashSow outdoors · May 8 – May 22

Fall lettuce, spinachSow outdoors · Aug 15 – Aug 29

GarlicPlant cloves · Sep 26 – Oct 31

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 1) and first fall frost (Oct 10) 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 40023 came on Mar 6 — 5 days earlier than the 1991–2020 average (Mar 11).

average
Mar 112026
Mar 6

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.

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 Fisherville, KY.

Soil in Fisherville, KY

The soil mapped at the center of ZIP 40023 is Beasley — silt loam, well drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureSilt loama good balance for most vegetables

pH6.7neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2.25%moderate

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Urban land-Alfic Udarents-Beasley complex, 0 to 12 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 40023; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Fisherville, KY

Summer high88 °Faverage high, July

Winter low20 °Faverage low, January

Hot days34days a year at 90 °F or more

Freezing nights139nights a year at 32 °F or less

Growing degree days3,491base 50 °F — the season’s usable heat

Longest day14 h 49 mindaylight on June 21

Shortest day9 h 30 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation52.5 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Shelbyville 1 E, KY (12 mi away); precipitation: Louisville 13.2 Ese, KY (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

400226b

Finchville, KY · 4 mi

400187a

Eastwood, KY · 5 mi

402997a

Louisville, KY · 5 mi

400676b

Simpsonville, KY · 5 mi

402457a

Louisville, KY · 7 mi

402437a

Louisville, KY · 8 mi

400717a

Taylorsville, KY · 9 mi

402917a

Louisville, KY · 9 mi

Kentucky planting zones →

Questions about 40023

What planting zone is ZIP code 40023?

ZIP code 40023 (Fisherville, 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 Fisherville, KY?

The median last spring frost (32 °F) near 40023 is May 1; after May 15 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Shelbyville 1 E station.

When is the first frost in Fisherville, KY?

The median first fall frost near 40023 is October 10, giving a median frost-free growing season of 161 days.

When should I plant tomatoes in 40023?

Start tomato seeds indoors around Mar 6 – Mar 20 and set transplants outside around May 8 – May 22, one to three weeks after the median last frost.

How much rain and snow does 40023 get?

About 52.5 inches of precipitation a year (NOAA 1991–2020 normals, Louisville 13.2 Ese station).

How hot do summers get in Fisherville, KY?

The average high peaks at 88 °F in July, with about 34 days a year at 90 °F or more.

What kind of soil does 40023 have?

The USDA soil survey maps Beasley at the center of ZIP 40023: silt loam, well drained, pH about 6.7 (neutral).

Did spring come early in Fisherville, KY in 2026?

Spring leaf-out near 40023 came on Mar 6 in 2026, 5 days earlier than the 1991–2020 average (Mar 11), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Fisherville, KY?

Intermediate onions: the longest day near 40023 is 14 h 49 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 40023 change?

Yes. The 2012 USDA map put 40023 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.