Atlantic City, Wyoming, sits in USDA hardiness zone 5a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with okra, cranberry, lavender, and pumpkin — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Atlantic City, 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 Atlantic City 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 Atlantic City — soil, climate, flood, and parcel records. How we handle your address.
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Atlantic City — the short answer
Atlantic City, Wyoming: USDA zone 5a, about 118 days between hard freezes, across 5K acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~118
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 Atlantic City's average, not your lot's — a low corner or a tree line moves it. Against Atlantic City's 118-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Atlantic City
Each reading below is measured for Atlantic City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAtlantic City runs about 118 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredAtlantic City 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 Atlantic City is in
Atlantic City sits in the Middle Rockies — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Atlantic City's own centroid, and it is not what its county reads: Fremont County is mostly Wyoming Basin. The wider page above you is answering a different question about different ground.
What Grows in Atlantic City
Every plant below cleared Atlantic City's own zone 5a and its 118-day season. Each card opens that plant's Wyoming profile. How we score.
Is it too late to plant in Atlantic City?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Apr 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 21 — long-season crops need about 90 days of runway, quick greens only 30. Short seasons reward decisiveness — quick-maturing varieties late, hardy greens under cover, and next year’s garlic in the ground before it closes.
What's on the federal record near Atlantic City
Closest first, within ~10 miles of Atlantic City. Listing isn't leaking, and distance isn't exposure.
- Palmeno's Full ServiceUnderground Storage Tanks · 2000 ft
- Diana MineMining · 2000 ft
- Mechanic &Emerald LodeMining · 2100 ft
- Midas MineMining · 0.6 mi
- West Main ConocoUnderground Storage Tanks · 0.7 mi
- Tabor Grand MineMining · 0.9 mi
- WY Department of TransportationUnderground Storage Tanks · 1.9 mi
- May and Jump ClaimsMining · 2.5 mi
- Universal Equipment CompanyUnderground Storage Tanks · 2.7 mi
- B&H Mining CompanyMining · 2.8 mi
- Rock Creek PlacersMining · 3.5 mi
- Carissa MineMining · 3.6 mi
3 more sites are on the record inside the same radius. See them on the map
Measured from Atlantic City'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 Atlantic City.
Severity Distribution
within ~10 miles of Atlantic City
Highest-Severity Sites
Know Before You Grow
- •Mine waste leaches heavy metals. Test for lead, arsenic and cadmium before growing food here.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
Check your specific parcel in Atlantic City
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 Atlantic City average
Your land is one point inside Atlantic City
Everything above resolves to Atlantic City as a whole — one PHZM band and one 28°F frost record, read across 5K 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 town 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 Atlantic City Average
Atlantic City Average
- ●USDA Zones 5a, averaged across Atlantic City
- ●One soil character for all of Atlantic City
- ●Frost dates read at Atlantic City's scale: May 26 to Sep 21
YOUR Parcel
- ✓Your exact zone, not Atlantic City's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Atlantic City
Pull a site-specific report for your exact address in Atlantic City, Wyoming — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Atlantic City averages can't show:
We read public map data around Atlantic City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Atlantic City average
How we know this about Atlantic City
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Atlantic City’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 town grain anywhere on this page — there is no town-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 Atlantic City
When does frost risk typically end in Atlantic City?
The last hard freeze (28°F) in Atlantic City typically lands around May 26, 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 Jun 16.
When is the first frost in Atlantic City?
The first hard freeze (28°F) in Atlantic City typically arrives around Sep 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 7, so the watching starts about Aug 22 — about 118 days after the spring freeze cleared.
How long is the growing season in Atlantic City?
Measured between 28°F hard freezes, Atlantic City sees about 118 frost-free days — roughly May 26 through Sep 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 16 to Sep 7, about 83 days.
Is the soil safe to grow vegetables in Atlantic City?
The federal record around Atlantic City is a meaningful one — 15 documented sites, mostly Mining entries (10), the nearest Underground Storage Tanks record about 0.4 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do gardeners stretch the season in Atlantic City?
With about 118 frost-free days between hard freezes, Atlantic City rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 146 to 174 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 26 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Atlantic City's scale — its 5a band and its 118-day season. Your yard writes its own version of Atlantic City'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 Atlantic City’s own scale
6 of the readings below were taken at Atlantic City's own scale — its own ~118-day season between 28°F freezes, the 4,989 acres it covers and 15 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Atlantic City's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Atlantic City's own 28°F hard-freeze dates, about May 26 and Sep 21 and the ~118-day span between themNOAA 1991–2020 Climate Normals
- 15 documented contamination sites on the federal record near Atlantic City, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Atlantic City's boundary and the 4,989 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~118-day seasonGrowable Ground crop-matching engine
- Atlantic City sits in the Middle Rockies — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Atlantic City's 4,989 acres read through its county's SSURGO summaryfrom Fremont County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Fremont County
- The growing challenges every Wyoming grower plans around — written at state scale, so they stay on the state guidefrom Wyoming
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Fremont County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Atlantic City's 4,989 acreswhy one lot differs from the next →
- Which side of Atlantic City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,989 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Atlantic City-wide figureread your own land →
More in Wyoming
Wider growing context
What grows across WyomingAtlantic City sits outside our named growing regions, so Wyoming as a whole is its closest context here.
Nearby growing guides