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

Planting zone for 89833 — Ruby Valley, NV

ZIP code 89833 (Ruby Valley, Elko County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is June 16 and the first fall frost September 13.

Where ZIP 89833 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.

Zone5b−15 to −10 °F

Coldest night−26.1 to −23.3 °C

Last frostJun 16

First frostSep 13

2012 zone6a

Was 6a 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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Ruby Valley, 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 Ruby Valley, NV

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostJune 16median — 50% chance of a later frost

Safe for tender plantsJune 30only 10% chance of frost after

First fall frostSeptember 13median — 10% chance by Aug 28

Growing season89 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 31 and returns around September 25.

From the NOAA station Jiggs 2ne, NV — 17 miles away, elevation 5,643 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 89833

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · May 5 – May 19

SpinachSow outdoors · May 5 – May 26

Broccoli, cabbageStart indoors · Apr 7 – Apr 21

Broccoli, cabbageTransplant · May 26 – Jun 9

Onion setsPlant outdoors · May 19 – Jun 2

PotatoesPlant outdoors · May 26 – Jun 9

LettuceSow outdoors · May 19 – Jun 2

Carrots, beetsSow outdoors · May 26 – Jun 9

TomatoesStart indoors · Apr 21 – May 5

TomatoesTransplant · Jun 23 – Jul 7

Peppers, eggplantStart indoors · Apr 7 – Apr 21

Peppers, eggplantTransplant · Jun 30 – Jul 14

BeansSow outdoors · Jun 23 – Jul 7

Sweet cornSow outdoors · Jun 23 – Jul 7

Cucumbers, squashSow outdoors · Jun 23 – Jul 7

Fall lettuce, spinachSow outdoors · Jul 19 – Aug 2

GarlicPlant cloves · Aug 30 – Oct 4

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 16) and first fall frost (Sep 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 89833 came on Mar 19 — 23 days earlier than the 1991–2020 average (Apr 11).

average
Apr 112026
Mar 19

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 5b in Nevada

475 plants native to the lower 48 states, recorded in Nevada, and rated by the USDA to survive −15 °F or colder — the bottom of zone 5b. 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 Ruby Valley, NV.

Soil in Ruby Valley, NV

The center of ZIP 89833 is mapped as Area not surveyed, access denied: built-over ground without natural soil data. Garden soil here is usually imported or disturbed — test before you plant.

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 89833; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Ruby Valley, NV

Summer high88 °Faverage high, July

Winter low14 °Faverage low, December

Hot days16days a year at 90 °F or more

Freezing nights200nights a year at 32 °F or less

Growing degree days1,897base 50 °F — the season’s usable heat

Longest day15 h 04 mindaylight on June 21

Shortest day9 h 16 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation31.8 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: Jiggs 2ne, NV (17 mi away); precipitation: Lamoille #3, NV (12 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

898155b

Spring Creek, NV · 15 mi

Nevada planting zones →

Questions about 89833

What planting zone is ZIP code 89833?

ZIP code 89833 (Ruby Valley, NV) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Ruby Valley, NV?

The median last spring frost (32 °F) near 89833 is June 16; after June 30 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Jiggs 2ne station.

When is the first frost in Ruby Valley, NV?

The median first fall frost near 89833 is September 13, giving a median frost-free growing season of 89 days.

When should I plant tomatoes in 89833?

Start tomato seeds indoors around Apr 21 – May 5 and set transplants outside around Jun 23 – Jul 7, one to three weeks after the median last frost.

How much rain and snow does 89833 get?

About 31.8 inches of precipitation a year (NOAA 1991–2020 normals, Lamoille #3 station).

How hot do summers get in Ruby Valley, NV?

The average high peaks at 88 °F in July, with about 16 days a year at 90 °F or more.

Did spring come early in Ruby Valley, NV in 2026?

Spring leaf-out near 89833 came on Mar 19 in 2026, 23 days earlier than the 1991–2020 average (Apr 11), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Ruby Valley, NV?

Long-day onions: the longest day near 89833 is 15 h 04 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 89833 change?

Yes. The 2012 USDA map put 89833 in zone 6a; the 2023 map puts it in zone 5b. The newer map uses 1991–2020 data and more weather stations.