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

Planting zone for 67546 — Inman, KS

ZIP code 67546 (Inman, McPherson County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 18 and the first fall frost October 21.

Where ZIP 67546 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 frostApr 18

First frostOct 21

2012 zone6b

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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Inman, KS…

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 Inman, KS

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 18median — 50% chance of a later frost

Safe for tender plantsMay 2only 10% chance of frost after

First fall frostOctober 21median — 10% chance by Oct 7

Growing season186 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 7 and returns around October 31.

From the NOAA station Hutchinson, KS — 11 miles away, elevation 1,539 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 67546

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 7 – Mar 21

SpinachSow outdoors · Mar 7 – Mar 28

Broccoli, cabbageStart indoors · Feb 7 – Feb 21

Broccoli, cabbageTransplant · Mar 28 – Apr 11

Onion setsPlant outdoors · Mar 21 – Apr 4

PotatoesPlant outdoors · Mar 28 – Apr 11

LettuceSow outdoors · Mar 21 – Apr 4

Carrots, beetsSow outdoors · Mar 28 – Apr 11

TomatoesStart indoors · Feb 21 – Mar 7

TomatoesTransplant · Apr 25 – May 9

Peppers, eggplantStart indoors · Feb 7 – Feb 21

Peppers, eggplantTransplant · May 2 – May 16

BeansSow outdoors · Apr 25 – May 9

Sweet cornSow outdoors · Apr 25 – May 9

Cucumbers, squashSow outdoors · Apr 25 – May 9

Fall lettuce, spinachSow outdoors · Aug 26 – Sep 9

GarlicPlant cloves · Oct 7 – Nov 11

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 18) and first fall frost (Oct 21) 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 67546 came on Feb 23 — 20 days earlier than the 1991–2020 average (Mar 15).

average
Mar 152026
Feb 23

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 Kansas

431 plants native to the lower 48 states, recorded in Kansas, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. 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 Inman, KS.

Soil in Inman, KS

The soil mapped at the center of ZIP 67546 is Crete — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables

pH5.7moderately acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter3%moderate

Hydrologic groupCwater soaks in slowly

Farmland classprime farmlandUSDA classification

Map unit: Crete silt loam, 0 to 1 percent slopes, loess plains and breaks.

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 67546; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Inman, KS

Summer high94 °Faverage high, July

Winter low19 °Faverage low, January

Hot days63days a year at 90 °F or more

Freezing nights120nights a year at 32 °F or less

Growing degree days4,398base 50 °F — the season’s usable heat

Longest day14 h 50 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

Precipitation33.6 inper year, rain and melted snow

Snowfall12 inper year; 9 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Hutchinson, KS (11 mi away); precipitation: Inman 5sw, KS (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

675226b

Buhler, KS · 8 mi

675026b

Hutchinson, KS · 9 mi

674916b

Windom, KS · 12 mi

674606b

Mcpherson, KS · 13 mi

674576b

Little River, KS · 14 mi

671076b

Moundridge, KS · 15 mi

675056b

South Hutchinson, KS · 15 mi

670206b

Burrton, KS · 17 mi

Kansas planting zones →

Questions about 67546

What planting zone is ZIP code 67546?

ZIP code 67546 (Inman, KS) 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 Inman, KS?

The median last spring frost (32 °F) near 67546 is April 18; after May 2 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Hutchinson station.

When is the first frost in Inman, KS?

The median first fall frost near 67546 is October 21, giving a median frost-free growing season of 186 days.

When should I plant tomatoes in 67546?

Start tomato seeds indoors around Feb 21 – Mar 7 and set transplants outside around Apr 25 – May 9, one to three weeks after the median last frost.

How much rain and snow does 67546 get?

About 33.6 inches of precipitation a year and 12 inches of snowfall (NOAA 1991–2020 normals, Inman 5sw station).

How hot do summers get in Inman, KS?

The average high peaks at 94 °F in July, with about 63 days a year at 90 °F or more.

What kind of soil does 67546 have?

The USDA soil survey maps Crete at the center of ZIP 67546: silt loam, moderately well drained, pH about 5.7 (moderately acidic).

Did spring come early in Inman, KS in 2026?

Spring leaf-out near 67546 came on Feb 23 in 2026, 20 days earlier than the 1991–2020 average (Mar 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Inman, KS?

Intermediate onions: the longest day near 67546 is 14 h 50 min, so day-neutral types bulb best; long-day varieties may not bulb fully.