West Hammond, New Mexico, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Among the crops suited to this profile: cabbage, pawpaw, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in West Hammond, 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 West Hammond 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 West Hammond — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
West Hammond — the short answer
West Hammond, New Mexico: USDA zone 7a, about 188 days between hard freezes, across 6K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~188
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 6K 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 West Hammond's average, not your lot's — a low corner or a tree line moves it. Against West Hammond's 188-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in West Hammond
Each reading below is measured for West Hammond itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredWest Hammond runs about 188 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals

Winter hardiness
MeasuredWest Hammond 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 West Hammond is in
West Hammond sits in the Arizona/New Mexico Plateau — EPA Level III, inside the wider North American Deserts. That is read at West Hammond's own centroid rather than borrowed from San Juan County.
What Grows in West Hammond
Every plant below cleared West Hammond's own zone 7a and its 188-day season. Each card opens that plant's New Mexico profile. How we score.






























Is it too late to plant in West Hammond?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near West Hammond
Closest first, within ~10 miles of West Hammond. Listing isn't leaking, and distance isn't exposure.
- 29N.12W.36.144Nitrate · 2500 ft
- 29N.12W.36.332Nitrate · 0.8 mi
- 29N.12W.36.311ANitrate · 0.8 mi
- 29N.12W.36.311Nitrate · 0.8 mi
- 29N.11W.30.233Nitrate · 1.3 mi
- THRIFTWAY FUELS 830Underground Storage Tanks · 1.3 mi
- XTO ENERGY BLOOMFIELD YARDBrownfields · 1.4 mi
- 28N.11W.18.3121Nitrate · 1.4 mi
- 29N.12W.35.344Nitrate · 1.5 mi
- 29N.12W.35.342Nitrate · 1.5 mi
- 29N.12W.35.342ANitrate · 1.5 mi
- 29N.12W.35.3434Nitrate · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from West Hammond'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 West Hammond.
Sources Checked
within ~10 miles of West Hammond
Severity Distribution
within ~10 miles of West Hammond
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in West Hammond
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 West Hammond average
Your land is one point inside West Hammond
Everything above resolves to West Hammond as a whole — one PHZM band and one 28°F frost record, read across 6K 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 West Hammond Average
West Hammond Average
- ●USDA Zones 7a, averaged across West Hammond
- ●One soil character for all of West Hammond
- ●Frost dates read at West Hammond's scale: Apr 18 to Oct 23
YOUR Parcel
- ✓Your exact zone, not West Hammond's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in West Hammond
Pull a site-specific report for your exact address in West Hammond, New Mexico — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that West Hammond averages can't show:
We read public map data around West Hammond — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the West Hammond average
How we know this about West Hammond
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 West Hammond’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 West Hammond
When does frost risk typically end in West Hammond?
The last hard freeze (28°F) in West Hammond typically lands around Apr 18, 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 May 9.
When is the first frost in West Hammond?
The first hard freeze (28°F) in West Hammond typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 188 days after the spring freeze cleared.
How long is the growing season in West Hammond?
Measured between 28°F hard freezes, West Hammond sees about 188 frost-free days — roughly Apr 18 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 9, about 153 days.
Is the soil safe to grow vegetables in West Hammond?
The federal record around West Hammond is a meaningful one — 494 documented sites, mostly Underground Storage Tanks entries (244), the nearest Nitrate record about 0.5 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 West Hammond?
From about Sep 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 Oct 23 (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 Oct 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at West Hammond's scale — its 7a band and its 188-day season. Your yard writes its own version of West Hammond'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 West Hammond’s own scale
6 of the readings below were taken at West Hammond's own scale — its own ~188-day season between 28°F freezes, the 5,828 acres it covers and 494 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- West Hammond's own USDA hardiness band, zones 7aUSDA PHZM 2023
- West Hammond's own 28°F hard-freeze dates, about Apr 18 and Oct 23 and the ~188-day span between themNOAA 1991–2020 Climate Normals
- 494 documented contamination sites on the federal record near West Hammond, the closest Nitrate record about 0.5 miles out from the town centreFederal environmental registers
- West Hammond's boundary and the 5,828 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~188-day seasonGrowable Ground crop-matching engine
- The ecoregion at West Hammond's own centroid, the Arizona/New Mexico PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so West Hammond's 5,828 acres read through its county's SSURGO summaryfrom San Juan County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom San Juan 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 San Juan County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among West Hammond's 5,828 acreswhy one lot differs from the next →
- Which side of West Hammond you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,828 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.5 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 West Hammond-wide figureread your own land →
