Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 30, 2026

Planting zone for 88318 — Corona, NM

ZIP code 88318 (Corona, Lincoln County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 29 and the first fall frost October 20.

Where ZIP 88318 is

Outlined: the ZIP code area · 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.

Zone7a0 to 5 °F

Coldest night−17.8 to −15 °C

Last frostApr 29

First frostOct 20

2012 zone6b

Was 6b on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Corona, 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 Corona, NM

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 29median — 50% chance of a later frost

Safe for tender plantsMay 11only 10% chance of frost after

First fall frostOctober 20median — 10% chance by Oct 1

Growing season172 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 16 and returns around October 30.

From the NOAA station Corona 10sw, NM — 12 miles away, elevation 6,680 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 88318

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 18 – Apr 1

SpinachSow outdoors · Mar 18 – Apr 8

Broccoli, cabbageStart indoors · Feb 18 – Mar 4

Broccoli, cabbageTransplant · Apr 8 – Apr 22

Onion setsPlant outdoors · Apr 1 – Apr 15

PotatoesPlant outdoors · Apr 8 – Apr 22

LettuceSow outdoors · Apr 1 – Apr 15

Carrots, beetsSow outdoors · Apr 8 – Apr 22

TomatoesStart indoors · Mar 4 – Mar 18

TomatoesTransplant · May 6 – May 20

Peppers, eggplantStart indoors · Feb 18 – Mar 4

Peppers, eggplantTransplant · May 13 – May 27

BeansSow outdoors · May 6 – May 20

Sweet cornSow outdoors · May 6 – May 20

Cucumbers, squashSow outdoors · May 6 – May 20

Fall lettuce, spinachSow outdoors · Aug 25 – Sep 8

GarlicPlant cloves · Oct 6 – Nov 10

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 29) and first fall frost (Oct 20) 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 88318 came on Feb 24 — 17 days earlier than the 1991–2020 average (Mar 13).

average
Mar 132026
Feb 24

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 7a in New Mexico

532 plants native to the lower 48 states, recorded in New Mexico, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

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 Corona, NM.

Soil in Corona, NM

The soil mapped at the center of ZIP 88318 is Deama — very cobbly loam, well drained.

TextureVery cobbly loama good balance for most vegetables

pH7.9alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2%moderate

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Rock outcrop-Stroupe-Deama association, extremely steep.

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 88318; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Corona, NM

Summer high84 °Faverage high, June

Winter low25 °Faverage low, January

Hot days10days a year at 90 °F or more

Freezing nights135nights a year at 32 °F or less

Growing degree days3,038base 50 °F — the season’s usable heat

Longest day14 h 26 mindaylight on June 21

Shortest day9 h 52 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation16.9 inper year, rain and melted snow

Snowfall28 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Corona 10sw, NM (12 mi away); precipitation: Corona 10sw, NM (12 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

Carrizozo, NM · 38 mi

881367a

Yeso, NM · 40 mi

870367a

Mountainair, NM · 43 mi

New Mexico planting zones →

Questions about 88318

What planting zone is ZIP code 88318?

ZIP code 88318 (Corona, NM) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Corona, NM?

The median last spring frost (32 °F) near 88318 is April 29; after May 11 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Corona 10sw station.

When is the first frost in Corona, NM?

The median first fall frost near 88318 is October 20, giving a median frost-free growing season of 172 days.

When should I plant tomatoes in 88318?

Start tomato seeds indoors around Mar 4 – Mar 18 and set transplants outside around May 6 – May 20, one to three weeks after the median last frost.

How much rain and snow does 88318 get?

About 16.9 inches of precipitation a year and 28 inches of snowfall (NOAA 1991–2020 normals, Corona 10sw station).

How hot do summers get in Corona, NM?

The average high peaks at 84 °F in June, with about 10 days a year at 90 °F or more.

What kind of soil does 88318 have?

The USDA soil survey maps Deama at the center of ZIP 88318: very cobbly loam, well drained, pH about 7.9 (alkaline).

Did spring come early in Corona, NM in 2026?

Spring leaf-out near 88318 came on Feb 24 in 2026, 17 days earlier than the 1991–2020 average (Mar 13), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Corona, NM?

Intermediate onions: the longest day near 88318 is 14 h 26 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 88318 change?

Yes. The 2012 USDA map put 88318 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.