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

Planting zone for 89049 — Tonopah, NV

ZIP code 89049 (Tonopah, Nye County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is May 10 and the first fall frost September 30.

Where ZIP 89049 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.

Zone6b−5 to 0 °F

Coldest night−20.6 to −17.8 °C

Last frostMay 10

First frostSep 30

2012 zone7a

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

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Tonopah, NV…

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 Tonopah, NV

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 10median — 50% chance of a later frost

Safe for tender plantsJune 2only 10% chance of frost after

First fall frostSeptember 30median — 10% chance by Sep 15

Growing season141 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 25 and returns around October 11.

From the NOAA station Twin Spring Fallini, NV — 18 miles away, elevation 5,299 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 89049

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 29 – Apr 12

SpinachSow outdoors · Mar 29 – Apr 19

Broccoli, cabbageStart indoors · Mar 1 – Mar 15

Broccoli, cabbageTransplant · Apr 19 – May 3

Onion setsPlant outdoors · Apr 12 – Apr 26

PotatoesPlant outdoors · Apr 19 – May 3

LettuceSow outdoors · Apr 12 – Apr 26

Carrots, beetsSow outdoors · Apr 19 – May 3

TomatoesStart indoors · Mar 15 – Mar 29

TomatoesTransplant · May 17 – May 31

Peppers, eggplantStart indoors · Mar 1 – Mar 15

Peppers, eggplantTransplant · May 24 – Jun 7

BeansSow outdoors · May 17 – May 31

Sweet cornSow outdoors · May 17 – May 31

Cucumbers, squashSow outdoors · May 17 – May 31

Fall lettuce, spinachSow outdoors · Aug 5 – Aug 19

GarlicPlant cloves · Sep 16 – Oct 21

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 10) and first fall frost (Sep 30) 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 89049 came on Mar 15 — 28 days earlier than the 1991–2020 average (Apr 12).

average
Apr 122026
Mar 15

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 6b in Nevada

508 plants native to the lower 48 states, recorded in Nevada, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. 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 Tonopah, NV.

Soil in Tonopah, NV

The soil mapped at the center of ZIP 89049 is Ubehebe — very gravelly sandy loam, well drained.

TextureVery gravelly sandy loamdrains and warms fast; dries out and needs more feeding

pH8.2alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter1.5%low — add compost

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Ubehebe-Penelas-Logring association.

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 89049; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Tonopah, NV

Summer high94 °Faverage high, July

Winter low14 °Faverage low, December

Hot days56days a year at 90 °F or more

Freezing nights181nights a year at 32 °F or less

Growing degree days2,818base 50 °F — the season’s usable heat

Longest day14 h 51 mindaylight on June 21

Shortest day9 h 29 mindaylight on December 21

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

Precipitation4.9 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Twin Spring Fallini, NV (18 mi away); precipitation: Twin Spring Fallini, NV (18 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

890226b

Manhattan, NV · 34 mi

890456a

Round Mountain, NV · 50 mi

893146a

Duckwater, NV · 52 mi

890177b

Hiko, NV · 75 mi

890477a

Silverpeak, NV · 80 mi

Goldfield, NV · 85 mi

Nevada planting zones →

Questions about 89049

What planting zone is ZIP code 89049?

ZIP code 89049 (Tonopah, NV) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Tonopah, NV?

The median last spring frost (32 °F) near 89049 is May 10; after June 2 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Twin Spring Fallini station.

When is the first frost in Tonopah, NV?

The median first fall frost near 89049 is September 30, giving a median frost-free growing season of 141 days.

When should I plant tomatoes in 89049?

Start tomato seeds indoors around Mar 15 – Mar 29 and set transplants outside around May 17 – May 31, one to three weeks after the median last frost.

How much rain and snow does 89049 get?

About 4.9 inches of precipitation a year (NOAA 1991–2020 normals, Twin Spring Fallini station).

How hot do summers get in Tonopah, NV?

The average high peaks at 94 °F in July, with about 56 days a year at 90 °F or more.

What kind of soil does 89049 have?

The USDA soil survey maps Ubehebe at the center of ZIP 89049: very gravelly sandy loam, well drained, pH about 8.2 (alkaline).

Did spring come early in Tonopah, NV in 2026?

Spring leaf-out near 89049 came on Mar 15 in 2026, 28 days earlier than the 1991–2020 average (Apr 12), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Tonopah, NV?

Intermediate onions: the longest day near 89049 is 14 h 51 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 89049 change?

Yes. The 2012 USDA map put 89049 in zone 7a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.