Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 88055 — Redrock, NM

ZIP code 88055 (Redrock, Grant County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 30 and the first fall frost October 23.

Where ZIP 88055 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.

Zone7b5 to 10 °F

Coldest night−15 to −12.2 °C

Last frostApr 30

First frostOct 23

2012 zone7b

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Redrock, 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 Redrock, NM

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 30median — 50% chance of a later frost

Safe for tender plantsMay 14only 10% chance of frost after

First fall frostOctober 23median — 10% chance by Oct 11

Growing season175 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 14 and returns around November 1.

From the NOAA station Redrock 1 Nne, NM — 2 miles away, elevation 4,055 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 88055

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 19 – Apr 2

SpinachSow outdoors · Mar 19 – Apr 9

Broccoli, cabbageStart indoors · Feb 19 – Mar 5

Broccoli, cabbageTransplant · Apr 9 – Apr 23

Onion setsPlant outdoors · Apr 2 – Apr 16

PotatoesPlant outdoors · Apr 9 – Apr 23

LettuceSow outdoors · Apr 2 – Apr 16

Carrots, beetsSow outdoors · Apr 9 – Apr 23

TomatoesStart indoors · Mar 5 – Mar 19

TomatoesTransplant · May 7 – May 21

Peppers, eggplantStart indoors · Feb 19 – Mar 5

Peppers, eggplantTransplant · May 14 – May 28

BeansSow outdoors · May 7 – May 21

Sweet cornSow outdoors · May 7 – May 21

Cucumbers, squashSow outdoors · May 7 – May 21

Fall lettuce, spinachSow outdoors · Aug 28 – Sep 11

GarlicPlant cloves · Oct 9 – Nov 13

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 30) and first fall frost (Oct 23) 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 88055 came on Feb 5 — 4 days earlier than the 1991–2020 average (Feb 9).

average
Feb 92026
Feb 5

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.

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 Redrock, NM.

Soil in Redrock, NM

The soil mapped at the center of ZIP 88055 is Tres Hermanos — gravelly sandy clay loam, well drained.

TextureGravelly sandy clay loamholds water and nutrients; slow to drain and warm up

pH7.9alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter0.75%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Tres Hermanos gravelly sandy clay loam, 0 to 8 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 88055; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Redrock, NM

Summer high96 °Faverage high, June

Winter low25 °Faverage low, January

Hot days93days a year at 90 °F or more

Freezing nights115nights a year at 32 °F or less

Growing degree days4,386base 50 °F — the season’s usable heat

Longest day14 h 18 mindaylight on June 21

Shortest day10 h 00 mindaylight on December 21

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

Precipitation12.5 inper year, rain and melted snow

Snowfall1 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Redrock 1 Nne, NM (2 mi away); precipitation: Redrock 1 Nne, NM (2 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.

880287b

Cliff, NM · 17 mi

880617b

Silver City, NM · 21 mi

880517b

Mule Creek, NM · 21 mi

Lordsburg, NM · 28 mi

880227b

Arenas Valley, NM · 33 mi

New Mexico planting zones →

Questions about 88055

What planting zone is ZIP code 88055?

ZIP code 88055 (Redrock, NM) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Redrock, NM?

The median last spring frost (32 °F) near 88055 is April 30; after May 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Redrock 1 Nne station.

When is the first frost in Redrock, NM?

The median first fall frost near 88055 is October 23, giving a median frost-free growing season of 175 days.

When should I plant tomatoes in 88055?

Start tomato seeds indoors around Mar 5 – Mar 19 and set transplants outside around May 7 – May 21, one to three weeks after the median last frost.

How much rain and snow does 88055 get?

About 12.5 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Redrock 1 Nne station).

How hot do summers get in Redrock, NM?

The average high peaks at 96 °F in June, with about 93 days a year at 90 °F or more.

What kind of soil does 88055 have?

The USDA soil survey maps Tres Hermanos at the center of ZIP 88055: gravelly sandy clay loam, well drained, pH about 7.9 (alkaline).

Did spring come early in Redrock, NM in 2026?

Spring leaf-out near 88055 came on Feb 5 in 2026, 4 days earlier than the 1991–2020 average (Feb 9), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Redrock, NM?

Intermediate onions: the longest day near 88055 is 14 h 18 min, so day-neutral types bulb best; long-day varieties may not bulb fully.