Lake Preston, South Dakota, sits in USDA hardiness zone 4b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, cranberry, turkish rocket, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Lake Preston, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Lake Preston lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Lake Preston — soil, climate, flood, and parcel records. How we handle your address.
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Lake Preston — the short answer
Lake Preston, South Dakota: USDA zone 4b, about 173 days between hard freezes, across 486 acres of city.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~173
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 486 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 4b is Lake Preston's average, not your lot's — a low corner or a tree line moves it. Against Lake Preston's 173-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lake Preston
Each reading below is measured for Lake Preston itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLake Preston runs about 173 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredLake Preston sits in USDA hardiness zone 4b.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Lake Preston is in
Lake Preston sits in the Northern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Lake Preston's own centroid rather than borrowed from Kingsbury County.
What Grows in Lake Preston
Every plant below cleared Lake Preston's own zone 4b and its 173-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Lake Preston?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 12 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
What's on the federal record near Lake Preston
Closest first, within ~10 miles of Lake Preston. Listing isn't leaking, and distance isn't exposure.
- 110N55W 1ACDANitrate · 400 ft
- PRAIRIE AG PARTNERSUnderground Storage Tanks · 550 ft
- 110N55W 1ADCBNitrate · 550 ft
- LAKE PRESTON PUBLIC SCHOOLBrownfields · 550 ft
- BOOMERSUnderground Storage Tanks · 1000 ft
- 110N55W 1ABDDNitrate · 1200 ft
- BAND BOY CLEANERSUnderground Storage Tanks · 1200 ft
- HILLESTAD OIL COUnderground Storage Tanks · 1300 ft
- TWENTYFIRST CENTURY MFG CO (ALVORD POLK TOOL)Brownfields · 2200 ft
- 110N54W 7BCBCNitrate · 0.9 mi
- 110N55W19CDDCNitrate · 6.4 mi
- CHERYL STRONGUnderground Storage Tanks · 7.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lake Preston's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Lake Preston.
Total Sites
75
within ~10 miles of Lake Preston
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Lake Preston
Severity Distribution
within ~10 miles of Lake Preston
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lake Preston, Nitrate runs higher than the national average — 46 sites within ~10 miles of Lake Preston. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Lake Preston
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Lake Preston average
Your land is one point inside Lake Preston
Everything above resolves to Lake Preston as a whole — one PHZM band and one 28°F frost record, read across 486 acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at city scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Lake Preston Average
Lake Preston Average
- ●USDA Zones 4b, averaged across Lake Preston
- ●One soil character for all of Lake Preston
- ●Frost dates read at Lake Preston's scale: Apr 22 to Oct 12
YOUR Parcel
- ✓Your exact zone, not Lake Preston's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lake Preston
Pull a site-specific report for your exact address in Lake Preston, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lake Preston averages can't show:
We read public map data around Lake Preston — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lake Preston average
How we know this about Lake Preston
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Lake Preston’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at city grain anywhere on this page — there is no city-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Lake Preston
When does frost risk typically end in Lake Preston?
The last hard freeze (28°F) in Lake Preston typically lands around Apr 22, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about May 13.
When is the first frost in Lake Preston?
The first hard freeze (28°F) in Lake Preston typically arrives around Oct 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 28, so the watching starts about Sep 12 — about 173 days after the spring freeze cleared.
How long is the growing season in Lake Preston?
Measured between 28°F hard freezes, Lake Preston sees about 173 frost-free days — roughly Apr 22 through Oct 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 13 to Sep 28, about 138 days.
Is the soil safe to grow vegetables in Lake Preston?
The federal record around Lake Preston shows 75 documented sites, mostly Nitrate entries (46), the nearest Nitrate record under a tenth of a mile out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Lake Preston?
From about Sep 12 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Oct 12 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Oct 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lake Preston's scale — its 4b band and its 173-day season. Your yard writes its own version of Lake Preston's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Lake Preston’s own scale
6 of the readings below were taken at Lake Preston's own scale — its own ~173-day season between 28°F freezes, the 486 acres it covers and 75 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lake Preston's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Lake Preston's own 28°F hard-freeze dates, about Apr 22 and Oct 12 and the ~173-day span between themNOAA 1991–2020 Climate Normals
- 75 documented contamination sites on the federal record near Lake Preston, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Lake Preston's boundary and the 486 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~173-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lake Preston's own centroid, the Northern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lake Preston's 486 acres read through its county's SSURGO summaryfrom Kingsbury County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kingsbury County
- The growing challenges every South Dakota grower plans around — written at state scale, so they stay on the state guidefrom South Dakota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Kingsbury County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lake Preston's 486 acreswhy one lot differs from the next →
- Which side of Lake Preston you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 486 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record under a tenth of a mile out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Lake Preston-wide figureread your own land →
More in South Dakota
Wider growing context
What grows across South DakotaLake Preston sits outside our named growing regions, so South Dakota as a whole is its closest context here.