Weir, Mississippi, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, fig, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Weir, 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 Weir 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 Weir — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Weir — the short answer
Weir, Mississippi: USDA zone 8a, about 270 days between hard freezes, across 688 acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 28
- Choctaw County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 25
- Choctaw County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~270
- Choctaw County normal — NOAA 1991–2020, nearest to this town
- Town area
- 688 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Choctaw County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8a is Weir's average, not your lot's — a low corner or a tree line moves it. Against Weir's 270-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Weir
Each reading below is measured for Weir itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsWeir runs about 270 days between hard freezes (read from Choctaw County, the closest normal to Weir) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWeir sits in USDA hardiness zone 8a.
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 Weir is in
Weir sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Weir's own centroid rather than borrowed from Choctaw County.
What Grows in Weir
Every plant below cleared Weir's own zone 8a and its 270-day season. Each card opens that plant's Mississippi profile. How we score.
Is it too late to plant in Weir?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 31; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 28 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
What's on the federal record near Weir
Closest first, within ~10 miles of Weir. Listing isn't leaking, and distance isn't exposure.
- J M GareyUnderground Storage Tanks · 1400 ft
- 019J0001 CHOCTAWNitrate · 1700 ft
- J M & Sons Heating & Air CondUnderground Storage Tanks · 1900 ft
- Mills GroceryUnderground Storage Tanks · 1900 ft
- Miller's Store The CityUnderground Storage Tanks · 2000 ft
- Sam's Quick StopUnderground Storage Tanks · 1.6 mi
- Fentress Little StoreUnderground Storage Tanks · 2.4 mi
- P Y Morgan GroceryUnderground Storage Tanks · 3.8 mi
- Belwood IncUnderground Storage Tanks · 4.5 mi
- H E Turnipseed & SonUnderground Storage Tanks · 5.1 mi
- 007D0025 ATTALANitrate · 5.4 mi
- SOUTHEASTERN TIMBER PRODUCTS LLC, ACKERMAN PLANTToxics Release Inventory · 5.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Weir'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 Weir.
Total Sites
72
within ~10 miles of Weir
Risk Level
Moderate
Highest-severity
6 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Weir
Severity Distribution
within ~10 miles of Weir
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Weir, two things run higher than the national average within ~10 miles of Weir — Toxics Release Inventory (6 sites) and Underground Storage Tanks (46 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Weir
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 Weir average
Your land is one point inside Weir
Everything above resolves to Weir as a whole — one PHZM band, read across 688 acres, with hard-freeze dates borrowed from Choctaw County’s record because no 30-year normal resolves at this town’s own centroid. 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 Weir Average
Weir Average
- ●USDA Zones 8a, averaged across Weir
- ●One soil character for all of Weir
- ●Frost dates read at Weir's scale: Feb 28 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Weir's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Weir
Pull a site-specific report for your exact address in Weir, Mississippi — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Weir averages can't show:
We read public map data around Weir — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Weir average
How we know this about Weir
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 Choctaw County’s record, because none resolves here; 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 Weir
When does frost risk typically end in Weir?
The last hard freeze (28°F) in Weir typically lands around Feb 28, 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 Mar 21.
When is the first frost in Weir?
The first hard freeze (28°F) in Weir typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 270 days after the spring freeze cleared.
How long is the growing season in Weir?
Measured between 28°F hard freezes, Weir sees about 270 frost-free days — roughly Feb 28 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 21 to Nov 11, about 235 days.
Is the soil safe to grow vegetables in Weir?
The federal record around Weir shows 72 documented sites, mostly Underground Storage Tanks entries (46), the nearest Underground Storage Tanks record about 0.3 miles 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 Weir?
From about Oct 26 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 Nov 25 (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 Nov 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Weir's scale — its 8a band and its 270-day season. Your yard writes its own version of Weir'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 Weir’s own scale
5 of the readings below were taken at Weir's own scale — the 688 acres it covers and 72 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Weir's own USDA hardiness band, zones 8aUSDA PHZM 2023
- 72 documented contamination sites on the federal record near Weir, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Weir's boundary and the 688 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~270-day seasonGrowable Ground crop-matching engine
- The ecoregion at Weir's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Weir has no normal of its own, so its county's is the closest measured readfrom Choctaw County
- Soil character — no town-scale survey exists, so Weir's 688 acres read through its county's SSURGO summaryfrom Choctaw County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Choctaw County
- The growing challenges every Mississippi grower plans around — written at state scale, so they stay on the state guidefrom Mississippi
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Choctaw County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Weir's 688 acreswhy one lot differs from the next →
- Which side of Weir you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 688 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 Weir-wide figureread your own land →
More in Mississippi
Wider growing context
What grows across MississippiWeir sits outside our named growing regions, so Mississippi as a whole is its closest context here.
Nearby growing guides