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

Planting zone for 57724 — Camp Crook, SD

ZIP code 57724 (Camp Crook, Harding County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is May 17 and the first fall frost September 24.

Where ZIP 57724 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 17
First frostSep 24
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 Camp Crook, 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 Camp Crook, SD

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 17median — 50% chance of a later frost
Safe for tender plantsMay 30only 10% chance of frost after
First fall frostSeptember 24median — 10% chance by Sep 9
Growing season128 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 4 and returns around October 3.

From the NOAA station Camp Crook, SD — 2 miles away, elevation 3,120 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 57724

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 5 – Apr 19
SpinachSow outdoors · Apr 5 – Apr 26
Broccoli, cabbageStart indoors · Mar 8 – Mar 22
Broccoli, cabbageTransplant · Apr 26 – May 10
Onion setsPlant outdoors · Apr 19 – May 3
PotatoesPlant outdoors · Apr 26 – May 10
LettuceSow outdoors · Apr 19 – May 3
Carrots, beetsSow outdoors · Apr 26 – May 10
TomatoesStart indoors · Mar 22 – Apr 5
TomatoesTransplant · May 24 – Jun 7
Peppers, eggplantStart indoors · Mar 8 – Mar 22
Peppers, eggplantTransplant · May 31 – Jun 14
BeansSow outdoors · May 24 – Jun 7
Sweet cornSow outdoors · May 24 – Jun 7
Cucumbers, squashSow outdoors · May 24 – Jun 7
Fall lettuce, spinachSow outdoors · Jul 30 – Aug 13
GarlicPlant cloves · Sep 10 – Oct 15
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 17) and first fall frost (Sep 24) 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 57724 came on Mar 24 — 20 days earlier than the 1991–2020 average (Apr 13).

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 Camp Crook, SD.

Soil in Camp Crook, SD

The soil mapped at the center of ZIP 57724 is Rhame — fine sandy loam, well drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding
pH6.9neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Rhame-Parchin fine sandy 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 57724; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Camp Crook, SD

Summer high88 °Faverage high, July
Winter low11 °Faverage low, January
Hot days33days a year at 90 °F or more
Freezing nights181nights a year at 32 °F or less
Growing degree days2,517base 50 °F — the season’s usable heat
Longest day15 h 42 mindaylight on June 21
Shortest day8 h 41 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation15.8 inper year, rain and melted snow
Snowfall51 inper year; 71 days with snow on the ground

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 34 °F, low 11 °F 34°11° JanFebruary: average high 37 °F, low 13 °F 37°13° FebMarch: average high 48 °F, low 22 °F 48°22° MarApril: average high 58 °F, low 31 °F 58°31° AprMay: average high 69 °F, low 42 °F 69°42° MayJune: average high 79 °F, low 51 °F 79°51° JunJuly: average high 88 °F, low 57 °F 88°57° JulAugust: average high 88 °F, low 55 °F 88°55° AugSeptember: average high 78 °F, low 45 °F 78°45° SepOctober: average high 61 °F, low 33 °F 61°33° OctNovember: average high 46 °F, low 22 °F 46°22° NovDecember: average high 36 °F, low 13 °F 36°13° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″January: 0.31 in precipitation, 7.6 in snowfall 0.3❄8 JanFebruary: 0.45 in precipitation, 9.3 in snowfall 0.5❄9 FebMarch: 0.70 in precipitation, 8.7 in snowfall 0.7❄9 MarApril: 1.61 in precipitation, 6.5 in snowfall 1.6❄7 AprMay: 2.87 in precipitation, 2.1 in snowfall 2.9❄2 MayJune: 2.91 in precipitation 2.9 JunJuly: 2.06 in precipitation 2.1 JulAugust: 1.60 in precipitation 1.6 AugSeptember: 1.19 in precipitation, 0.1 in snowfall 1.2 SepOctober: 1.27 in precipitation, 3.2 in snowfall 1.3❄3 OctNovember: 0.48 in precipitation, 5.9 in snowfall 0.5❄6 NovDecember: 0.34 in precipitation, 7.1 in snowfall 0.3❄7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Camp Crook, SD (2 mi away); precipitation: Camp Crook, SD (2 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.

593194b
Capitol, MT · 14 mi
577204b
Buffalo, SD · 20 mi
593244b
Ekalaka, MT · 31 mi
577764b
Redig, SD · 33 mi
593324b
Hammond, MT · 36 mi
577554b
Ludlow, SD · 38 mi
593114b
Alzada, MT · 39 mi
586434a
Marmarth, ND · 44 mi

South Dakota planting zones →

Questions about 57724

What planting zone is ZIP code 57724?

ZIP code 57724 (Camp Crook, 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 Camp Crook, SD?

The median last spring frost (32 °F) near 57724 is May 17; after May 30 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Camp Crook station.

When is the first frost in Camp Crook, SD?

The median first fall frost near 57724 is September 24, giving a median frost-free growing season of 128 days.

When should I plant tomatoes in 57724?

Start tomato seeds indoors around Mar 22 – Apr 5 and set transplants outside around May 24 – Jun 7, one to three weeks after the median last frost.

How much rain and snow does 57724 get?

About 15.8 inches of precipitation a year and 51 inches of snowfall (NOAA 1991–2020 normals, Camp Crook station).

How hot do summers get in Camp Crook, SD?

The average high peaks at 88 °F in July, with about 33 days a year at 90 °F or more.

What kind of soil does 57724 have?

The USDA soil survey maps Rhame at the center of ZIP 57724: fine sandy loam, well drained, pH about 6.9 (neutral).

Did spring come early in Camp Crook, SD in 2026?

Spring leaf-out near 57724 came on Mar 24 in 2026, 20 days earlier than the 1991–2020 average (Apr 13), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Camp Crook, SD?

Long-day onions: the longest day near 57724 is 15 h 42 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 57724 change?

Yes. The 2012 USDA map put 57724 in zone 4a; the 2023 map puts it in zone 4b. The newer map uses 1991–2020 data and more weather stations.