Kettleman City, California, sits in USDA hardiness zone 9b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include okra, meyer lemon, california poppy, and artichoke — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Kettleman 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 Kettleman 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 Kettleman City — soil, climate, flood, and parcel records. How we handle your address.
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Kettleman City — the short answer
Kettleman City, California: USDA zone 9b, about 323 days between hard freezes, across 135 acres of town.
- USDA zone
- 9b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 17
- Kings County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 6
- Kings County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~323
- Kings County normal — NOAA 1991–2020, nearest to this town
- Town area
- 135 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 Kings County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9b is Kettleman City's average, not your lot's — a low corner or a tree line moves it. Against Kettleman City's 323-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Kettleman City
Each reading below is measured for Kettleman City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsKettleman City runs about 323 days between hard freezes (read from Kings County, the closest normal to Kettleman City) — 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
MeasuredKettleman City sits in USDA hardiness zone 9b.
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 Kettleman City is in
Kettleman City sits in the Central California Valley — EPA Level III, inside the wider Mediterranean California. That is read at Kettleman City's own centroid rather than borrowed from Kings County.
What Grows in Kettleman City
Every plant below cleared Kettleman City's own zone 9b and its 323-day season. Each card opens that plant's California profile. How we score.
Is it too late to plant in Kettleman City?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Jan 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 6 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near Kettleman City
Closest first, within ~10 miles of Kettleman City. Listing isn't leaking, and distance isn't exposure.
- PARAMOUNT FARMSBrownfields · 650 ft
- Kettleman City MarketUnderground Storage Tanks · 850 ft
- 022S019E19C001MNitrate · 950 ft
- 022S019E18P003MNitrate · 950 ft
- 022S019E18N003MNitrate · 1200 ft
- KETTLEMAN CITY COMMUNITY SERV. DISTRICTBrownfields · 1200 ft
- 022S019E18N005MNitrate · 1200 ft
- JIMMY E PHELAN DBA OKIE'S TOWING & TRUCK REPAIRBrownfields · 1200 ft
- CALTRANS D6 MAINT KETTLEMAN CITY MSBrownfields · 1500 ft
- XPO LOGISTICS FREIGHT, INC. - UKCBrownfields · 0.5 mi
- 022S019E19J001MNitrate · 1.0 mi
- AT&T MOBILITYBrownfields · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Kettleman 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 Kettleman City.
Total Sites
193
within ~10 miles of Kettleman City
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Kettleman City
Severity Distribution
within ~10 miles of Kettleman City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Kettleman City, Nitrate runs higher than the national average — 90 sites within ~10 miles of Kettleman City. 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 Kettleman 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 Kettleman City average
Your land is one point inside Kettleman City
Everything above resolves to Kettleman City as a whole — one PHZM band, read across 135 acres, with hard-freeze dates borrowed from Kings 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 Kettleman City Average
Kettleman City Average
- ●USDA Zones 9b, averaged across Kettleman City
- ●One soil character for all of Kettleman City
- ●Frost dates read at Kettleman City's scale: Jan 17 to Dec 6
YOUR Parcel
- ✓Your exact zone, not Kettleman City's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Kettleman City
Pull a site-specific report for your exact address in Kettleman City, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Kettleman City averages can't show:
We read public map data around Kettleman City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Kettleman City average
How we know this about Kettleman 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 Kings 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 Kettleman City
When does frost risk typically end in Kettleman City?
The last hard freeze (28°F) in Kettleman City typically lands around Jan 17, 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 Feb 7.
When is the first frost in Kettleman City?
The first hard freeze (28°F) in Kettleman City typically arrives around Dec 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 22, so the watching starts about Nov 6 — about 323 days after the spring freeze cleared.
How long is the growing season in Kettleman City?
Measured between 28°F hard freezes, Kettleman City sees about 323 frost-free days — roughly Jan 17 through Dec 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 7 to Nov 22, about 288 days.
Is the soil safe to grow vegetables in Kettleman City?
The federal record around Kettleman City shows 193 documented sites, mostly Nitrate entries (90), the nearest Brownfields record about 0.1 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 Kettleman City?
From about Nov 6 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 Dec 6 (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 Dec 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Kettleman City's scale — its 9b band and its 323-day season. Your yard writes its own version of Kettleman 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 Kettleman City’s own scale
5 of the readings below were taken at Kettleman City's own scale — the 135 acres it covers and 193 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Kettleman City's own USDA hardiness band, zones 9bUSDA PHZM 2023
- 193 documented contamination sites on the federal record near Kettleman City, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Kettleman City's boundary and the 135 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9b and a ~323-day seasonGrowable Ground crop-matching engine
- The ecoregion at Kettleman City's own centroid, the Central California ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Kettleman City has no normal of its own, so its county's is the closest measured readfrom Kings County
- Soil character — no town-scale survey exists, so Kettleman City's 135 acres read through its county's SSURGO summaryfrom Kings County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kings County
- The growing challenges every California grower plans around — written at state scale, so they stay on the state guidefrom California
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Kings County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Kettleman City's 135 acreswhy one lot differs from the next →
- Which side of Kettleman 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 135 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.1 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 Kettleman City-wide figureread your own land →