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

Planting zone for 47119 — Floyds Knobs, IN

ZIP code 47119 (Floyds Knobs, Floyd County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is March 31 and the first fall frost November 9.

Where ZIP 47119 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.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostMar 31
First frostNov 9
2012 zone6a

Was 6a 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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Floyds Knobs, IN…

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 Floyds Knobs, IN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 31median — 50% chance of a later frost
Safe for tender plantsApril 14only 10% chance of frost after
First fall frostNovember 9median — 10% chance by Oct 31
Growing season225 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 18 and returns around November 20.

From the NOAA station Louisville Mcalpine, KY — 8 miles away, elevation 440 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 47119

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 17 – Mar 3
SpinachSow outdoors · Feb 17 – Mar 10
Broccoli, cabbageStart indoors · Jan 20 – Feb 3
Broccoli, cabbageTransplant · Mar 10 – Mar 24
Onion setsPlant outdoors · Mar 3 – Mar 17
PotatoesPlant outdoors · Mar 10 – Mar 24
LettuceSow outdoors · Mar 3 – Mar 17
Carrots, beetsSow outdoors · Mar 10 – Mar 24
TomatoesStart indoors · Feb 3 – Feb 17
TomatoesTransplant · Apr 7 – Apr 21
Peppers, eggplantStart indoors · Jan 20 – Feb 3
Peppers, eggplantTransplant · Apr 14 – Apr 28
BeansSow outdoors · Apr 7 – Apr 21
Sweet cornSow outdoors · Apr 7 – Apr 21
Cucumbers, squashSow outdoors · Apr 7 – Apr 21
Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28
GarlicPlant cloves · Oct 26 – Nov 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 9) 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 47119 came on Mar 7 — 8 days earlier than the 1991–2020 average (Mar 15).

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 6b in Indiana

564 plants native to the lower 48 states, recorded in Indiana, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 72

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 105

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 202

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °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 °F

Grasses 162

American beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 11

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °Fheartleaf peppervine2 ft · blooms late spring · low shade tolerance · to −8 °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 Floyds Knobs, IN.

Soil in Floyds Knobs, IN

The soil mapped at the center of ZIP 47119 is Gilwood — silt loam, well drained.

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

Map unit: Gilwood-Wrays silt loams, 12 to 25 percent slopes, eroded.

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 47119; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Floyds Knobs, IN

Summer high89 °Faverage high, July
Winter low26 °Faverage low, January
Hot days46days a year at 90 °F or more
Freezing nights77nights a year at 32 °F or less
Growing degree days4,560base 50 °F — the season’s usable heat
Longest day14 h 51 mindaylight on June 21
Shortest day9 h 29 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation50.6 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 43 °F, low 26 °F 43°26° JanFebruary: average high 48 °F, low 29 °F 48°29° FebMarch: average high 57 °F, low 37 °F 57°37° MarApril: average high 69 °F, low 47 °F 69°47° AprMay: average high 77 °F, low 58 °F 77°58° MayJune: average high 85 °F, low 66 °F 85°66° JunJuly: average high 89 °F, low 70 °F 89°70° JulAugust: average high 88 °F, low 69 °F 88°69° AugSeptember: average high 82 °F, low 62 °F 82°62° SepOctober: average high 70 °F, low 50 °F 70°50° OctNovember: average high 57 °F, low 38 °F 57°38° NovDecember: average high 47 °F, low 31 °F 47°31° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 3.63 in precipitation 3.6 JanFebruary: 3.73 in precipitation 3.7 FebMarch: 4.72 in precipitation 4.7 MarApril: 5.42 in precipitation 5.4 AprMay: 5.40 in precipitation 5.4 MayJune: 4.89 in precipitation 4.9 JunJuly: 4.34 in precipitation 4.3 JulAugust: 3.11 in precipitation 3.1 AugSeptember: 3.66 in precipitation 3.7 SepOctober: 3.93 in precipitation 3.9 OctNovember: 3.66 in precipitation 3.7 NovDecember: 4.10 in precipitation 4.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Louisville Mcalpine, KY (8 mi away); precipitation: Galena 3.0 Se, IN (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

471466b
Mount Saint Francis, IN · 5 mi
471727a
Sellersburg, IN · 6 mi
471507a
New Albany, IN · 6 mi
471066b
Borden, IN · 6 mi
471246b
Greenville, IN · 7 mi
471517a
New Albany, IN · 7 mi
471226b
Georgetown, IN · 7 mi
471297a
Clarksville, IN · 7 mi

Indiana planting zones →

Questions about 47119

What planting zone is ZIP code 47119?

ZIP code 47119 (Floyds Knobs, IN) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Floyds Knobs, IN?

The median last spring frost (32 °F) near 47119 is March 31; after April 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Louisville Mcalpine station.

When is the first frost in Floyds Knobs, IN?

The median first fall frost near 47119 is November 9, giving a median frost-free growing season of 225 days.

When should I plant tomatoes in 47119?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 47119 get?

About 50.6 inches of precipitation a year (NOAA 1991–2020 normals, Galena 3.0 Se station).

How hot do summers get in Floyds Knobs, IN?

The average high peaks at 89 °F in July, with about 46 days a year at 90 °F or more.

What kind of soil does 47119 have?

The USDA soil survey maps Gilwood at the center of ZIP 47119: silt loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Floyds Knobs, IN in 2026?

Spring leaf-out near 47119 came on Mar 7 in 2026, 8 days earlier than the 1991–2020 average (Mar 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Floyds Knobs, IN?

Intermediate onions: the longest day near 47119 is 14 h 51 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 47119 change?

Yes. The 2012 USDA map put 47119 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.