Murdo, South Dakota, sits in USDA hardiness zone 5a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, cranberry, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Murdo, 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 Murdo 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 Murdo — soil, climate, flood, and parcel records. How we handle your address.
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Murdo — the short answer
Murdo, South Dakota: USDA zone 5a, about 175 days between hard freezes, across 403 acres of city.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~175
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 403 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 5a is Murdo's average, not your lot's — a low corner or a tree line moves it. Against Murdo's 175-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Murdo
Each reading below is measured for Murdo itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMurdo runs about 175 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
MeasuredMurdo sits in USDA hardiness zone 5a.
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 Murdo is in
Murdo sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Murdo's own centroid rather than borrowed from Jones County.
What Grows in Murdo
Every plant below cleared Murdo's own zone 5a and its 175-day season. Each card opens that plant's South Dakota profile. How we score.
Is it too late to plant in Murdo?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 16 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Murdo
Closest first, within ~10 miles of Murdo. Listing isn't leaking, and distance isn't exposure.
- RUSTY KWIK STOPUnderground Storage Tanks · 1400 ft
- ROBERT WILSONUnderground Storage Tanks · 1800 ft
- STATE OF SD, DIV OF RAILROADSUnderground Storage Tanks · 1800 ft
- CHRIS'S SPRAYING SERVICEUnderground Storage Tanks · 1800 ft
- DEANS 66 (FORMER)Brownfields · 2000 ft
- CLASSIC SERVICEUnderground Storage Tanks · 2300 ft
- SINCLAIRUnderground Storage Tanks · 2400 ft
- DONS STANDARDBrownfields · 2400 ft
- COUNTRY MARTUnderground Storage Tanks · 2600 ft
- PILOT TRAVEL CENTER #599Underground Storage Tanks · 0.5 mi
- SD DEPT OF TRANSPORTATIONUnderground Storage Tanks · 0.8 mi
- 001S28E36ACANitrate · 2.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Murdo'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 Murdo.
Severity Distribution
within ~10 miles of Murdo
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Murdo, Nitrate runs higher than the national average — 16 sites within ~10 miles of Murdo. That's not a problem with your land — it's information about it.
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 Murdo
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 Murdo average
Your land is one point inside Murdo
Everything above resolves to Murdo as a whole — one PHZM band and one 28°F frost record, read across 403 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 Murdo Average
Murdo Average
- ●USDA Zones 5a, averaged across Murdo
- ●One soil character for all of Murdo
- ●Frost dates read at Murdo's scale: Apr 24 to Oct 16
YOUR Parcel
- ✓Your exact zone, not Murdo's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Murdo
Pull a site-specific report for your exact address in Murdo, South Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Murdo averages can't show:
We read public map data around Murdo — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Murdo average
How we know this about Murdo
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 Murdo’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 Murdo
When does frost risk typically end in Murdo?
The last hard freeze (28°F) in Murdo typically lands around Apr 24, 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 15.
When is the first frost in Murdo?
The first hard freeze (28°F) in Murdo typically arrives around Oct 16, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 2, so the watching starts about Sep 16 — about 175 days after the spring freeze cleared.
How long is the growing season in Murdo?
Measured between 28°F hard freezes, Murdo sees about 175 frost-free days — roughly Apr 24 through Oct 16, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 15 to Oct 2, about 140 days.
Is the soil safe to grow vegetables in Murdo?
The federal record around Murdo is light — 32 documented sites across the 9 federal source types we checked, mostly Nitrate entries (16), the nearest Underground Storage Tanks record about 0.3 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Murdo?
From about Sep 16 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 16 (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 16. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Murdo's scale — its 5a band and its 175-day season. Your yard writes its own version of Murdo'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 Murdo’s own scale
6 of the readings below were taken at Murdo's own scale — its own ~175-day season between 28°F freezes, the 403 acres it covers and 32 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Murdo's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Murdo's own 28°F hard-freeze dates, about Apr 24 and Oct 16 and the ~175-day span between themNOAA 1991–2020 Climate Normals
- 32 documented contamination sites on the federal record near Murdo, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Murdo's boundary and the 403 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~175-day seasonGrowable Ground crop-matching engine
- The ecoregion at Murdo's own centroid, the Northwestern Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Murdo's 403 acres read through its county's SSURGO summaryfrom Jones County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jones 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 Jones County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Murdo's 403 acreswhy one lot differs from the next →
- Which side of Murdo you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 403 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 miles 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 Murdo-wide figureread your own land →
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