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

Planting zone for 84083 — Wendover, UT

ZIP code 84083 (Wendover, Tooele County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 18 and the first fall frost October 23.

Where ZIP 84083 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 frostApr 18
First frostOct 23
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 Wendover, UT…

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 Wendover, UT

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 18median — 50% chance of a later frost
Safe for tender plantsMay 5only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 13
Growing season188 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 31 and returns around November 1.

From the NOAA station Wendover Airport Awos, UT — 17 miles away, elevation 4,236 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 84083

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 7 – Mar 21
SpinachSow outdoors · Mar 7 – Mar 28
Broccoli, cabbageStart indoors · Feb 7 – Feb 21
Broccoli, cabbageTransplant · Mar 28 – Apr 11
Onion setsPlant outdoors · Mar 21 – Apr 4
PotatoesPlant outdoors · Mar 28 – Apr 11
LettuceSow outdoors · Mar 21 – Apr 4
Carrots, beetsSow outdoors · Mar 28 – Apr 11
TomatoesStart indoors · Feb 21 – Mar 7
TomatoesTransplant · Apr 25 – May 9
Peppers, eggplantStart indoors · Feb 7 – Feb 21
Peppers, eggplantTransplant · May 2 – May 16
BeansSow outdoors · Apr 25 – May 9
Sweet cornSow outdoors · Apr 25 – May 9
Cucumbers, squashSow outdoors · Apr 25 – May 9
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 18) 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 84083 came on Mar 15 — 12 days earlier than the 1991–2020 average (Mar 27).

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 Utah

549 plants native to the lower 48 states, recorded in Utah, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 30

Shrubs 107

Wildflowers & perennials 251

Grasses 151

Vines 3

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 Wendover, UT.

Soil in Wendover, UT

The center of ZIP 84083 is mapped as Salt flats: 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 84083; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Wendover, UT

Summer high93 °Faverage high, July
Winter low20 °Faverage low, January
Hot days57days a year at 90 °F or more
Freezing nights125nights a year at 32 °F or less
Growing degree days3,499base 50 °F — the season’s usable heat
Longest day15 h 06 mindaylight on June 21
Shortest day9 h 14 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation3.6 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 35 °F, low 20 °F 35°20° JanFebruary: average high 43 °F, low 25 °F 43°25° FebMarch: average high 54 °F, low 33 °F 54°33° MarApril: average high 62 °F, low 41 °F 62°41° AprMay: average high 72 °F, low 50 °F 72°50° MayJune: average high 83 °F, low 59 °F 83°59° JunJuly: average high 93 °F, low 67 °F 93°67° JulAugust: average high 90 °F, low 65 °F 90°65° AugSeptember: average high 78 °F, low 54 °F 78°54° SepOctober: average high 62 °F, low 41 °F 62°41° OctNovember: average high 47 °F, low 28 °F 47°28° NovDecember: average high 36 °F, low 20 °F 36°20° Dec

Precipitation by month inches

0″1″January: 0.25 in precipitation 0.3 JanFebruary: 0.17 in precipitation 0.2 FebMarch: 0.33 in precipitation 0.3 MarApril: 0.36 in precipitation 0.4 AprMay: 0.58 in precipitation 0.6 MayJune: 0.28 in precipitation 0.3 JunJuly: 0.22 in precipitation 0.2 JulAugust: 0.16 in precipitation 0.2 AugSeptember: 0.50 in precipitation 0.5 SepOctober: 0.34 in precipitation 0.3 OctNovember: 0.22 in precipitation 0.2 NovDecember: 0.19 in precipitation 0.2 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Wendover Airport Awos, UT (17 mi away); precipitation: Wendover Airport Awos, UT (17 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.

Utah planting zones →

Questions about 84083

What planting zone is ZIP code 84083?

ZIP code 84083 (Wendover, UT) 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 Wendover, UT?

The median last spring frost (32 °F) near 84083 is April 18; after May 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Wendover Airport Awos station.

When is the first frost in Wendover, UT?

The median first fall frost near 84083 is October 23, giving a median frost-free growing season of 188 days.

When should I plant tomatoes in 84083?

Start tomato seeds indoors around Feb 21 – Mar 7 and set transplants outside around Apr 25 – May 9, one to three weeks after the median last frost.

How much rain and snow does 84083 get?

About 3.6 inches of precipitation a year (NOAA 1991–2020 normals, Wendover Airport Awos station).

How hot do summers get in Wendover, UT?

The average high peaks at 93 °F in July, with about 57 days a year at 90 °F or more.

Did spring come early in Wendover, UT in 2026?

Spring leaf-out near 84083 came on Mar 15 in 2026, 12 days earlier than the 1991–2020 average (Mar 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Wendover, UT?

Long-day onions: the longest day near 84083 is 15 h 06 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 84083 change?

Yes. The 2012 USDA map put 84083 in zone 7a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.