South Weber, Utah, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, hazelnut, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in South Weber, 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 South Weber 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 South Weber — soil, climate, flood, and parcel records. How we handle your address.
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South Weber — the short answer
South Weber, Utah: USDA zone 7a, about 219 days between hard freezes, across 3K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~219
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 7a is South Weber's average, not your lot's — a low corner or a tree line moves it. Against South Weber's 219-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in South Weber
Each reading below is measured for South Weber itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSouth Weber runs about 219 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredSouth Weber sits in USDA hardiness zone 7a.
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 South Weber is in
South Weber sits in the Central Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at South Weber's own centroid rather than borrowed from Davis County.
What Grows in South Weber
Every plant below cleared South Weber's own zone 7a and its 219-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in South Weber?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near South Weber
Closest first, within ~10 miles of South Weber. Listing isn't leaking, and distance isn't exposure.
- CLAUDE H. NIX CONSTRUCTION COUnderground Storage Tanks · 250 ft
- CALVIN T. WATERSUnderground Storage Tanks · 550 ft
- RAYS VALLEY SERVICEUnderground Storage Tanks · 1000 ft
- UINTAH STATIONUnderground Storage Tanks · 0.7 mi
- GIBBONS & REED COUnderground Storage Tanks · 1.0 mi
- WAL-MART NEIGHBORHOOD MARKET 5206Brownfields · 1.2 mi
- SKYLINE CHEVRONUnderground Storage Tanks · 1.2 mi
- WALGREENS STORE #15013Brownfields · 1.3 mi
- HILL AFB MMRP SR502 OUTDR SMLL ARM FIRING RGE (BLDG 741)Superfund · 1.3 mi
- RIVERDALE CITY WATER SYSTEMPFAS · 1.3 mi
- SOUTH OGDEN CITY WATER SYSTEMPFAS · 1.3 mi
- WASHINGTON TERRACE CITY WATER SYSTEMPFAS · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from South Weber'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 South Weber.
Sources Checked
within ~10 miles of South Weber
Severity Distribution
within ~10 miles of South Weber
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around South Weber, two things run higher than the national average within ~10 miles of South Weber — PFAS (19 sites) and Superfund (17 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in South Weber
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 South Weber average
Your land is one point inside South Weber
Everything above resolves to South Weber as a whole — one PHZM band and one 28°F frost record, read across 3K 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 South Weber Average
South Weber Average
- ●USDA Zones 7a, averaged across South Weber
- ●One soil character for all of South Weber
- ●Frost dates read at South Weber's scale: Mar 29 to Nov 3
YOUR Parcel
- ✓Your exact zone, not South Weber's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in South Weber
Pull a site-specific report for your exact address in South Weber, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that South Weber averages can't show:
We read public map data around South Weber — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the South Weber average
How we know this about South Weber
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 South Weber’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 South Weber
When does frost risk typically end in South Weber?
The last hard freeze (28°F) in South Weber typically lands around Mar 29, 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 Apr 19.
When is the first frost in South Weber?
The first hard freeze (28°F) in South Weber typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 219 days after the spring freeze cleared.
How long is the growing season in South Weber?
Measured between 28°F hard freezes, South Weber sees about 219 frost-free days — roughly Mar 29 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 20, about 184 days.
Is the soil safe to grow vegetables in South Weber?
The federal record around South Weber runs heavier than most — 1,150 documented sites, mostly Underground Storage Tanks entries (664), the nearest Underground Storage Tanks record under a tenth of a mile out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in South Weber?
From about Oct 4 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 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at South Weber's scale — its 7a band and its 219-day season. Your yard writes its own version of South Weber'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 South Weber’s own scale
6 of the readings below were taken at South Weber's own scale — its own ~219-day season between 28°F freezes, the 2,998 acres it covers and 1,150 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- South Weber's own USDA hardiness band, zones 7aUSDA PHZM 2023
- South Weber's own 28°F hard-freeze dates, about Mar 29 and Nov 3 and the ~219-day span between themNOAA 1991–2020 Climate Normals
- 1,150 documented contamination sites on the federal record near South Weber, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- South Weber's boundary and the 2,998 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~219-day seasonGrowable Ground crop-matching engine
- The ecoregion at South Weber's own centroid, the Central Basin and RangeUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so South Weber's 2,998 acres read through its county's SSURGO summaryfrom Davis County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Davis County
- The growing challenges every Utah grower plans around — written at state scale, so they stay on the state guidefrom Utah
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Davis County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among South Weber's 2,998 acreswhy one lot differs from the next →
- Which side of South Weber you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,998 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 South Weber-wide figureread your own land →
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