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

Planting zone for 54757 — New Auburn, WI

ZIP code 54757 (New Auburn, Chippewa County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is May 5 and the first fall frost October 3.

Where ZIP 54757 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.

Zone4b−25 to −20 °F
Coldest night−31.7 to −28.9 °C
Last frostMay 5
First frostOct 3
2012 zone4a

Was 4a 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 4b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for New Auburn, WI…

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 New Auburn, WI

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 5median — 50% chance of a later frost
Safe for tender plantsMay 19only 10% chance of frost after
First fall frostOctober 3median — 10% chance by Sep 20
Growing season151 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 26 and returns around October 15.

From the NOAA station Bloomer, WI — 11 miles away, elevation 991 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 54757

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 24 – Apr 7
SpinachSow outdoors · Mar 24 – Apr 14
Broccoli, cabbageStart indoors · Feb 24 – Mar 10
Broccoli, cabbageTransplant · Apr 14 – Apr 28
Onion setsPlant outdoors · Apr 7 – Apr 21
PotatoesPlant outdoors · Apr 14 – Apr 28
LettuceSow outdoors · Apr 7 – Apr 21
Carrots, beetsSow outdoors · Apr 14 – Apr 28
TomatoesStart indoors · Mar 10 – Mar 24
TomatoesTransplant · May 12 – May 26
Peppers, eggplantStart indoors · Feb 24 – Mar 10
Peppers, eggplantTransplant · May 19 – Jun 2
BeansSow outdoors · May 12 – May 26
Sweet cornSow outdoors · May 12 – May 26
Cucumbers, squashSow outdoors · May 12 – May 26
Fall lettuce, spinachSow outdoors · Aug 8 – Aug 22
GarlicPlant cloves · Sep 19 – Oct 24
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 5) and first fall frost (Oct 3) 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 54757 came on Apr 11 — 8 days earlier than the 1991–2020 average (Apr 19).

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 4b in Wisconsin

486 plants native to the lower 48 states, recorded in Wisconsin, and rated by the USDA to survive −25 °F or colder — the bottom of zone 4b. Each links to its USDA PLANTS profile.

Trees 48

Shrubs 89

Wildflowers & perennials 178

Grasses 152

Vines 4

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 New Auburn, WI.

Soil in New Auburn, WI

The soil mapped at the center of ZIP 54757 is Greenwood — peat, very poorly drained.

TexturePeattop layer
DrainageVery poorly drainedconsider raised beds
Organic matter65%high
Hydrologic groupA/Ddrains fast once dried out; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Greenwood peat, 0 to 1 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 54757; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in New Auburn, WI

Summer high81 °Faverage high, July
Winter low3 °Faverage low, January
Hot days8days a year at 90 °F or more
Freezing nights170nights a year at 32 °F or less
Growing degree days2,357base 50 °F — the season’s usable heat
Longest day15 h 39 mindaylight on June 21
Shortest day8 h 44 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation31.9 inper year, rain and melted snow
Snowfall42 inper year; 100 days with snow on the ground

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 21 °F, low 3 °F 21°3° JanFebruary: average high 26 °F, low 7 °F 26°7° FebMarch: average high 39 °F, low 19 °F 39°19° MarApril: average high 54 °F, low 33 °F 54°33° AprMay: average high 68 °F, low 45 °F 68°45° MayJune: average high 77 °F, low 56 °F 77°56° JunJuly: average high 81 °F, low 60 °F 81°60° JulAugust: average high 79 °F, low 57 °F 79°57° AugSeptember: average high 71 °F, low 48 °F 71°48° SepOctober: average high 56 °F, low 36 °F 56°36° OctNovember: average high 40 °F, low 24 °F 40°24° NovDecember: average high 27 °F, low 11 °F 27°11° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 1.00 in precipitation, 9.3 in snowfall 1.0❄9 JanFebruary: 0.94 in precipitation, 9.9 in snowfall 0.9❄10 FebMarch: 1.58 in precipitation, 7.2 in snowfall 1.6❄7 MarApril: 2.93 in precipitation, 2.4 in snowfall 2.9❄2 AprMay: 3.73 in precipitation, 0.3 in snowfall 3.7 MayJune: 4.51 in precipitation 4.5 JunJuly: 4.14 in precipitation 4.1 JulAugust: 3.98 in precipitation 4.0 AugSeptember: 3.32 in precipitation 3.3 SepOctober: 2.82 in precipitation, 0.6 in snowfall 2.8❄1 OctNovember: 1.74 in precipitation, 2.6 in snowfall 1.7❄3 NovDecember: 1.22 in precipitation, 9.5 in snowfall 1.2❄10 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Bloomer, WI (11 mi away); precipitation: Bloomer, WI (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Wisconsin planting zones →

Questions about 54757

What planting zone is ZIP code 54757?

ZIP code 54757 (New Auburn, WI) is in USDA hardiness zone 4b on the 2023 map: the coldest night of an average winter reaches −25 to −20 °F (−31.7 to −28.9 °C).

When is the last frost in New Auburn, WI?

The median last spring frost (32 °F) near 54757 is May 5; after May 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Bloomer station.

When is the first frost in New Auburn, WI?

The median first fall frost near 54757 is October 3, giving a median frost-free growing season of 151 days.

When should I plant tomatoes in 54757?

Start tomato seeds indoors around Mar 10 – Mar 24 and set transplants outside around May 12 – May 26, one to three weeks after the median last frost.

How much rain and snow does 54757 get?

About 31.9 inches of precipitation a year and 42 inches of snowfall (NOAA 1991–2020 normals, Bloomer station).

How hot do summers get in New Auburn, WI?

The average high peaks at 81 °F in July, with about 8 days a year at 90 °F or more.

What kind of soil does 54757 have?

The USDA soil survey maps Greenwood at the center of ZIP 54757: peat, very poorly drained.

Did spring come early in New Auburn, WI in 2026?

Spring leaf-out near 54757 came on Apr 11 in 2026, 8 days earlier than the 1991–2020 average (Apr 19), according to the USA National Phenology Network Spring Index.

What kind of onions grow in New Auburn, WI?

Long-day onions: the longest day near 54757 is 15 h 39 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 54757 change?

Yes. The 2012 USDA map put 54757 in zone 4a; the 2023 map puts it in zone 4b. The newer map uses 1991–2020 data and more weather stations.