Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for Las Cruces, NM

Las Cruces, NM is in USDA zones 7b to 8b across its 9 ZIP codes. The median last spring frost is March 12 and the first fall frost November 13.

Las Cruces on the zone map

Outlined: its 7 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zones7b–8b5 to 20 °F
ZIP codes9
Last frostMar 12
First frostNov 13
Growing season241 days

7b 1 ZIP   8a 1 ZIP   8b 7 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Las Cruces, NM…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Las Cruces, NM

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 12median — 50% chance of a later frost
Safe for tender plantsApril 2only 10% chance of frost after
First fall frostNovember 13median — 10% chance by Oct 30
Growing season241 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 26 and returns around November 24.

From the NOAA station State Univ, NM, elevation 3,888 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Las Cruces

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 29 – Feb 12
SpinachSow outdoors · Jan 29 – Feb 19
Broccoli, cabbageStart indoors · Jan 1 – Jan 15
Broccoli, cabbageTransplant · Feb 19 – Mar 5
Onion setsPlant outdoors · Feb 12 – Feb 26
PotatoesPlant outdoors · Feb 19 – Mar 5
LettuceSow outdoors · Feb 12 – Feb 26
Carrots, beetsSow outdoors · Feb 19 – Mar 5
TomatoesStart indoors · Jan 15 – Jan 29
TomatoesTransplant · Mar 19 – Apr 2
Peppers, eggplantStart indoors · Jan 1 – Jan 15
Peppers, eggplantTransplant · Mar 26 – Apr 9
BeansSow outdoors · Mar 19 – Apr 2
Sweet cornSow outdoors · Mar 19 – Apr 2
Cucumbers, squashSow outdoors · Mar 19 – Apr 2
Fall lettuce, spinachSow outdoors · Sep 18 – Oct 2
GarlicPlant cloves · Oct 30 – Dec 4
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 12) and first fall frost (Nov 13) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 88006 came on Feb 5 — about the same time as the 1991–2020 average (Feb 6).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 7b in New Mexico

535 plants native to the lower 48 states, recorded in New Mexico, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. Each links to its USDA PLANTS profile.

Trees 29

Arizona cypress50 ft · blooms spring · low shade tolerance · to −23 °FArizona madrone30 ft · blooms late spring · high shade tolerance · to −4 °FArizona sycamore80 ft · blooms early spring · high shade tolerance · to −8 °FArizona walnut50 ft · blooms late spring · high shade tolerance · to −33 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fblack walnut100 ft · blooms late spring · high shade tolerance · to −28 °F

Shrubs 103

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican tarwort3 ft · blooms late spring · high shade tolerance · to −23 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FApache plume6 ft · blooms late spring · high shade tolerance · to −23 °F

Wildflowers & perennials 229

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bistort1.5 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °F

Grasses 166

alkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °Farctic bluegrass2 ft · high shade tolerance · to −62 °FArizona cottontop4 ft · blooms late summer · high shade tolerance · to −13 °F

Vines 1

western white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Las Cruces, NM.

Soil in Las Cruces, NM

The soil mapped at the center of ZIP 88006 is Anthony — loam, well drained.

TextureLoama good balance for most vegetables
pH8.0alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.7%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Anthony-Vinton loams, 0 to 1 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 88006; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Las Cruces, NM

Summer high96 °Faverage high, June
Winter low30 °Faverage low, January
Hot days109days a year at 90 °F or more
Freezing nights69nights a year at 32 °F or less
Growing degree days5,425base 50 °F — the season’s usable heat
Longest day14 h 17 mindaylight on June 21
Shortest day10 h 01 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation10.4 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 59 °F, low 30 °F 59°30° JanFebruary: average high 64 °F, low 34 °F 64°34° FebMarch: average high 71 °F, low 39 °F 71°39° MarApril: average high 79 °F, low 46 °F 79°46° AprMay: average high 87 °F, low 54 °F 87°54° MayJune: average high 96 °F, low 64 °F 96°64° JunJuly: average high 96 °F, low 69 °F 96°69° JulAugust: average high 94 °F, low 68 °F 94°68° AugSeptember: average high 88 °F, low 61 °F 88°61° SepOctober: average high 80 °F, low 48 °F 80°48° OctNovember: average high 68 °F, low 37 °F 68°37° NovDecember: average high 58 °F, low 30 °F 58°30° Dec

Precipitation by month inches

0″1″2″3″January: 0.55 in precipitation 0.6 JanFebruary: 0.44 in precipitation 0.4 FebMarch: 0.28 in precipitation 0.3 MarApril: 0.25 in precipitation 0.3 AprMay: 0.44 in precipitation 0.4 MayJune: 0.63 in precipitation 0.6 JunJuly: 2.41 in precipitation 2.4 JulAugust: 1.89 in precipitation 1.9 AugSeptember: 1.50 in precipitation 1.5 SepOctober: 0.85 in precipitation 0.8 OctNovember: 0.46 in precipitation 0.5 NovDecember: 0.71 in precipitation 0.7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: State Univ, NM (2 mi away); precipitation: Las Cruces 2.7 Ssw, NM (within 1 mile). Daylight is calculated from latitude.

ZIP codes in Las Cruces

880018b
15 to 20 °F
880038b
15 to 20 °F
880048b
15 to 20 °F
880058a
10 to 15 °F
880068b
15 to 20 °F
880078b
15 to 20 °F
880118b
15 to 20 °F
880127b
5 to 10 °F
880138b
15 to 20 °F

New Mexico planting zones →

Questions about Las Cruces

What planting zone is Las Cruces, NM?

Las Cruces, NM is in USDA hardiness zones 7b to 8b on the 2023 map (7b: 5 to 10 °F; 8a: 10 to 15 °F; 8b: 15 to 20 °F).

When is the last frost in Las Cruces, NM?

The median last spring frost is March 12 and the median first fall frost is November 13 (NOAA 1991–2020 normals, State Univ station).

When can I plant a garden in Las Cruces, NM?

Cool-season crops like peas and spinach go in around Jan 29 – Feb 19; tomatoes, peppers, beans and squash after about Mar 19, once frost risk has passed.

What kind of onions grow in Las Cruces, NM?

Short-day onions: the longest day is 14 h 17 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Las Cruces, NM get?

About 10.4 inches of precipitation a year (NOAA 1991–2020 normals).