San Miguel, New Mexico, sits in USDA hardiness zone 8b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
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 San Miguel, 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 San Miguel 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 San Miguel — soil, climate, flood, and parcel records. How we handle your address.
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San Miguel — the short answer
San Miguel, New Mexico: USDA zone 8b, about 267 days between hard freezes, across 1K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~267
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 8b is San Miguel's average, not your lot's — a low corner or a tree line moves it. Against San Miguel's 267-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in San Miguel
Each reading below is measured for San Miguel itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSan Miguel runs about 267 days between hard freezes — 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
MeasuredSan Miguel sits in USDA hardiness zone 8b.
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 San Miguel is in
San Miguel sits in the Chihuahuan Deserts — EPA Level III, inside the wider North American Deserts. That is read at San Miguel's own centroid rather than borrowed from Doña Ana County.
What Grows in San Miguel
Every plant below cleared San Miguel's own zone 8b and its 267-day season. Each card opens that plant's New Mexico profile. How we score.
Is it too late to plant in San Miguel?
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 22 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
Documented around San Miguel
Survey cells within 31 miles of San Miguel checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 612 miles off. What to watch for.
What's on the federal record near San Miguel
Closest first, within ~10 miles of San Miguel. Listing isn't leaking, and distance isn't exposure.
- MONTESUnderground Storage Tanks · 1200 ft
- SOUTHERN PACIFIC AFTONUnderground Storage Tanks · 1200 ft
- 25S.02E.10.111 DUPNitrate · 2100 ft
- CITY MARKET EG BORUNDAUnderground Storage Tanks · 2400 ft
- MBOWN-335 25S.02E.04.421Nitrate · 0.9 mi
- MBOWN-103 - 25S.02E.04.114 (USBR-7)Nitrate · 1.6 mi
- BUENA VISTA DAIRY 1CAFO · 1.9 mi
- 25S.02E.01.132Nitrate · 1.9 mi
- MESQUITE MERCANTILEUnderground Storage Tanks · 1.9 mi
- SILVA SANITATIONUnderground Storage Tanks · 1.9 mi
- 25S.02E.22.242Nitrate · 2.2 mi
- LA MESA CHEVRONUnderground Storage Tanks · 2.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from San Miguel'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 San Miguel.
Total Sites
212
within ~10 miles of San Miguel
Risk Level
Elevated
Highest-severity
4 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of San Miguel
Severity Distribution
within ~10 miles of San Miguel
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around San Miguel, two things run higher than the national average within ~10 miles of San Miguel — CAFO (14 sites) and Nitrate (88 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in San Miguel
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 San Miguel average
Your land is one point inside San Miguel
Everything above resolves to San Miguel as a whole — one PHZM band and one 28°F frost record, read across 1K 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 San Miguel Average
San Miguel Average
- ●USDA Zones 8b, averaged across San Miguel
- ●One soil character for all of San Miguel
- ●Frost dates read at San Miguel's scale: Feb 28 to Nov 22
YOUR Parcel
- ✓Your exact zone, not San Miguel's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in San Miguel
Pull a site-specific report for your exact address in San Miguel, New Mexico — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that San Miguel averages can't show:
We read public map data around San Miguel — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the San Miguel average
How we know this about San Miguel
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 San Miguel’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 San Miguel
When does frost risk typically end in San Miguel?
The last hard freeze (28°F) in San Miguel 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 San Miguel?
The first hard freeze (28°F) in San Miguel typically arrives around Nov 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 8, so the watching starts about Oct 23 — about 267 days after the spring freeze cleared.
How long is the growing season in San Miguel?
Measured between 28°F hard freezes, San Miguel sees about 267 frost-free days — roughly Feb 28 through Nov 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 21 to Nov 8, about 232 days.
Is the soil safe to grow vegetables in San Miguel?
The federal record around San Miguel is a meaningful one — 212 documented sites, mostly Nitrate entries (88), the nearest Underground Storage Tanks record about 0.2 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 I protect my plants from frost in San Miguel?
From about Oct 23 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 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at San Miguel's scale — its 8b band and its 267-day season. Your yard writes its own version of San Miguel'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 San Miguel’s own scale
7 of the readings below were taken at San Miguel's own scale — its own ~267-day season between 28°F freezes, the 1,466 acres it covers and 212 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- San Miguel's own USDA hardiness band, zones 8bUSDA PHZM 2023
- San Miguel's own 28°F hard-freeze dates, about Feb 28 and Nov 22 and the ~267-day span between themNOAA 1991–2020 Climate Normals
- 212 documented contamination sites on the federal record near San Miguel, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- San Miguel's boundary and the 1,466 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~267-day seasonGrowable Ground crop-matching engine
- The ecoregion at San Miguel's own centroid, the Chihuahuan DesertsUS EPA Level III Ecoregions
- Lanternfly survey cells around San Miguel checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so San Miguel's 1,466 acres read through its county's SSURGO summaryfrom Doña Ana County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Doña Ana County
- The growing challenges every New Mexico grower plans around — written at state scale, so they stay on the state guidefrom New Mexico
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Doña Ana County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among San Miguel's 1,466 acreswhy one lot differs from the next →
- Which side of San Miguel you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,466 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 San Miguel-wide figureread your own land →
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