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

Planting zone for 57457 — Long Lake, SD

ZIP code 57457 (Long Lake, McPherson County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is May 10 and the first fall frost September 30.

Where ZIP 57457 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 10
First frostSep 30
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 Long Lake, SD…

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 Long Lake, SD

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 10median — 50% chance of a later frost
Safe for tender plantsMay 22only 10% chance of frost after
First fall frostSeptember 30median — 10% chance by Sep 19
Growing season143 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 1 and returns around October 9.

From the NOAA station Aberdeen 35 Wnw, SD — 12 miles away, elevation 1,959 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 57457

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 29 – Apr 12
SpinachSow outdoors · Mar 29 – Apr 19
Broccoli, cabbageStart indoors · Mar 1 – Mar 15
Broccoli, cabbageTransplant · Apr 19 – May 3
Onion setsPlant outdoors · Apr 12 – Apr 26
PotatoesPlant outdoors · Apr 19 – May 3
LettuceSow outdoors · Apr 12 – Apr 26
Carrots, beetsSow outdoors · Apr 19 – May 3
TomatoesStart indoors · Mar 15 – Mar 29
TomatoesTransplant · May 17 – May 31
Peppers, eggplantStart indoors · Mar 1 – Mar 15
Peppers, eggplantTransplant · May 24 – Jun 7
BeansSow outdoors · May 17 – May 31
Sweet cornSow outdoors · May 17 – May 31
Cucumbers, squashSow outdoors · May 17 – May 31
Fall lettuce, spinachSow outdoors · Aug 5 – Aug 19
GarlicPlant cloves · Sep 16 – Oct 21
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 10) and first fall frost (Sep 30) 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 57457 came on Apr 17 — 4 days earlier than the 1991–2020 average (Apr 21).

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 South Dakota

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

Trees 23

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fblack maple100 ft · blooms late spring · low shade tolerance · to −47 °Fblack walnut100 ft · blooms late spring · high shade tolerance · to −28 °F

Shrubs 65

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °Falderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fbeaked hazelnut15 ft · blooms early spring · low shade tolerance · to −47 °F

Wildflowers & perennials 191

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °Falpine sweetvetch2 ft · blooms early summer · high shade tolerance · to −62 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 138

Alaska oniongrass3 ft · blooms mid spring · low shade tolerance · to −33 °Falkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °F

Vines 5

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °FVirginia creeper1 ft · blooms late spring · medium shade tolerance · to −28 °Fwestern white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °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 Long Lake, SD.

Soil in Long Lake, SD

The soil mapped at the center of ZIP 57457 is Lehr — loam, somewhat excessively drained.

TextureLoama good balance for most vegetables
pH7.2neutral; most vegetables like 6.0–7.0
DrainageSomewhat excessively drainednatural drainage class
Organic matter2%moderate
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Lehr-Bowdle loams, 2 to 6 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 57457; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Long Lake, SD

Summer high81 °Faverage high, July
Winter low4 °Faverage low, January
Hot days9days a year at 90 °F or more
Freezing nights179nights a year at 32 °F or less
Growing degree days2,156base 50 °F — the season’s usable heat
Longest day15 h 44 mindaylight on June 21
Shortest day8 h 39 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation19.9 inper year, rain and melted snow

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 21 °F, low 4 °F 21°4° JanFebruary: average high 24 °F, low 7 °F 24°7° FebMarch: average high 38 °F, low 18 °F 38°18° MarApril: average high 53 °F, low 31 °F 53°31° AprMay: average high 66 °F, low 43 °F 66°43° MayJune: average high 75 °F, low 53 °F 75°53° JunJuly: average high 81 °F, low 58 °F 81°58° JulAugust: average high 79 °F, low 56 °F 79°56° AugSeptember: average high 71 °F, low 47 °F 71°47° SepOctober: average high 55 °F, low 33 °F 55°33° OctNovember: average high 39 °F, low 20 °F 39°20° NovDecember: average high 25 °F, low 9 °F 25°9° Dec

Precipitation by month inches

0″1″2″3″4″January: 0.50 in precipitation 0.5 JanFebruary: 0.52 in precipitation 0.5 FebMarch: 1.40 in precipitation 1.4 MarApril: 1.65 in precipitation 1.6 AprMay: 2.92 in precipitation 2.9 MayJune: 3.30 in precipitation 3.3 JunJuly: 2.96 in precipitation 3.0 JulAugust: 2.06 in precipitation 2.1 AugSeptember: 2.00 in precipitation 2.0 SepOctober: 1.57 in precipitation 1.6 OctNovember: 0.45 in precipitation 0.5 NovDecember: 0.55 in precipitation 0.6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Aberdeen 35 Wnw, SD (12 mi away); precipitation: Aberdeen 35 Wnw, SD (12 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 4b.

584134b
Ashley, ND · 11 mi
574564b
Leola, SD · 13 mi
584394b
Forbes, ND · 17 mi
574484b
Hosmer, SD · 23 mi
574374b
Eureka, SD · 23 mi
574814b
Westport, SD · 27 mi
584564b
Kulm, ND · 28 mi
584404b
Fredonia, ND · 28 mi

South Dakota planting zones →

Questions about 57457

What planting zone is ZIP code 57457?

ZIP code 57457 (Long Lake, SD) 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 Long Lake, SD?

The median last spring frost (32 °F) near 57457 is May 10; after May 22 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Aberdeen 35 Wnw station.

When is the first frost in Long Lake, SD?

The median first fall frost near 57457 is September 30, giving a median frost-free growing season of 143 days.

When should I plant tomatoes in 57457?

Start tomato seeds indoors around Mar 15 – Mar 29 and set transplants outside around May 17 – May 31, one to three weeks after the median last frost.

How much rain and snow does 57457 get?

About 19.9 inches of precipitation a year (NOAA 1991–2020 normals, Aberdeen 35 Wnw station).

How hot do summers get in Long Lake, SD?

The average high peaks at 81 °F in July, with about 9 days a year at 90 °F or more.

What kind of soil does 57457 have?

The USDA soil survey maps Lehr at the center of ZIP 57457: loam, somewhat excessively drained, pH about 7.2 (neutral).

Did spring come early in Long Lake, SD in 2026?

Spring leaf-out near 57457 came on Apr 17 in 2026, 4 days earlier than the 1991–2020 average (Apr 21), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Long Lake, SD?

Long-day onions: the longest day near 57457 is 15 h 44 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 57457 change?

Yes. The 2012 USDA map put 57457 in zone 4a; the 2023 map puts it in zone 4b. The newer map uses 1991–2020 data and more weather stations.