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

Planting zone for 46748 — Huntertown, IN

ZIP code 46748 (Huntertown, Allen County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 2 and the first fall frost October 10.

Where ZIP 46748 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostMay 2
First frostOct 10
2012 zone6a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Huntertown, 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 Huntertown, IN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 2median — 50% chance of a later frost
Safe for tender plantsMay 16only 10% chance of frost after
First fall frostOctober 10median — 10% chance by Sep 26
Growing season159 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 22 and returns around October 22.

From the NOAA station Garrett 1 S, IN — 6 miles away, elevation 869 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 46748

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 21 – Apr 4
SpinachSow outdoors · Mar 21 – Apr 11
Broccoli, cabbageStart indoors · Feb 21 – Mar 7
Broccoli, cabbageTransplant · Apr 11 – Apr 25
Onion setsPlant outdoors · Apr 4 – Apr 18
PotatoesPlant outdoors · Apr 11 – Apr 25
LettuceSow outdoors · Apr 4 – Apr 18
Carrots, beetsSow outdoors · Apr 11 – Apr 25
TomatoesStart indoors · Mar 7 – Mar 21
TomatoesTransplant · May 9 – May 23
Peppers, eggplantStart indoors · Feb 21 – Mar 7
Peppers, eggplantTransplant · May 16 – May 30
BeansSow outdoors · May 9 – May 23
Sweet cornSow outdoors · May 9 – May 23
Cucumbers, squashSow outdoors · May 9 – May 23
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 2) 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 46748 came on Mar 21 — 14 days earlier than the 1991–2020 average (Apr 4).

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 6a in Indiana

558 plants native to the lower 48 states, recorded in Indiana, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. Each links to its USDA PLANTS profile.

Trees 71

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 200

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 161

American beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °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 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 9

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 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fsummer grape30 ft · blooms late spring · low 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 Huntertown, IN.

Soil in Huntertown, IN

The soil mapped at the center of ZIP 46748 is Martinsville — loam, well drained.

TextureLoama good balance for most vegetables
pH6.5neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classprime farmlandUSDA classification

Map unit: Martinsville loam, gravelly substratum, 0 to 2 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 46748; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Huntertown, IN

Summer high81 °Faverage high, July
Winter low17 °Faverage low, January
Hot days11days a year at 90 °F or more
Freezing nights129nights a year at 32 °F or less
Growing degree days2,660base 50 °F — the season’s usable heat
Longest day15 h 09 mindaylight on June 21
Shortest day9 h 12 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation37.8 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 30 °F, low 17 °F 30°17° JanFebruary: average high 34 °F, low 19 °F 34°19° FebMarch: average high 46 °F, low 27 °F 46°27° MarApril: average high 59 °F, low 37 °F 59°37° AprMay: average high 70 °F, low 48 °F 70°48° MayJune: average high 78 °F, low 57 °F 78°57° JunJuly: average high 81 °F, low 60 °F 81°60° JulAugust: average high 79 °F, low 58 °F 79°58° AugSeptember: average high 73 °F, low 51 °F 73°51° SepOctober: average high 61 °F, low 41 °F 61°41° OctNovember: average high 47 °F, low 31 °F 47°31° NovDecember: average high 35 °F, low 22 °F 35°22° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 2.58 in precipitation 2.6 JanFebruary: 2.15 in precipitation 2.1 FebMarch: 2.58 in precipitation 2.6 MarApril: 3.62 in precipitation 3.6 AprMay: 4.74 in precipitation 4.7 MayJune: 4.11 in precipitation 4.1 JunJuly: 3.44 in precipitation 3.4 JulAugust: 3.75 in precipitation 3.8 AugSeptember: 2.85 in precipitation 2.9 SepOctober: 2.77 in precipitation 2.8 OctNovember: 2.83 in precipitation 2.8 NovDecember: 2.41 in precipitation 2.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Garrett 1 S, IN (6 mi away); precipitation: Huntertown 2.6 Ese, IN (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

468456a
Fort Wayne, IN · 4 mi
467386a
Garrett, IN · 5 mi
467636a
Laotto, IN · 6 mi
468256a
Fort Wayne, IN · 7 mi
467656a
Leo, IN · 7 mi
467106a
Avilla, IN · 9 mi
467236a
Churubusco, IN · 9 mi
468186a
Fort Wayne, IN · 9 mi

Indiana planting zones →

Questions about 46748

What planting zone is ZIP code 46748?

ZIP code 46748 (Huntertown, IN) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Huntertown, IN?

The median last spring frost (32 °F) near 46748 is May 2; after May 16 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Garrett 1 S station.

When is the first frost in Huntertown, IN?

The median first fall frost near 46748 is October 10, giving a median frost-free growing season of 159 days.

When should I plant tomatoes in 46748?

Start tomato seeds indoors around Mar 7 – Mar 21 and set transplants outside around May 9 – May 23, one to three weeks after the median last frost.

How much rain and snow does 46748 get?

About 37.8 inches of precipitation a year (NOAA 1991–2020 normals, Huntertown 2.6 Ese station).

How hot do summers get in Huntertown, IN?

The average high peaks at 81 °F in July, with about 11 days a year at 90 °F or more.

What kind of soil does 46748 have?

The USDA soil survey maps Martinsville at the center of ZIP 46748: loam, well drained, pH about 6.5 (neutral).

Did spring come early in Huntertown, IN in 2026?

Spring leaf-out near 46748 came on Mar 21 in 2026, 14 days earlier than the 1991–2020 average (Apr 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Huntertown, IN?

Long-day onions: the longest day near 46748 is 15 h 09 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).