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

Planting zone for 84745 — La Verkin, UT

ZIP code 84745 (La Verkin, Washington County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is April 1 and the first fall frost November 5.

Where ZIP 84745 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.

Zone8a10 to 15 °F

Coldest night−12.2 to −9.4 °C

Last frostApr 1

First frostNov 5

2012 zone8a

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 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for La Verkin, 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 La Verkin, UT

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 1median — 50% chance of a later frost

Safe for tender plantsApril 24only 10% chance of frost after

First fall frostNovember 5median — 10% chance by Oct 23

Growing season217 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 4 and returns around November 15.

From the NOAA station La Verkin, UT — within 1 mile, elevation 3,196 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 84745

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 18 – Mar 4

SpinachSow outdoors · Feb 18 – Mar 11

Broccoli, cabbageStart indoors · Jan 21 – Feb 4

Broccoli, cabbageTransplant · Mar 11 – Mar 25

Onion setsPlant outdoors · Mar 4 – Mar 18

PotatoesPlant outdoors · Mar 11 – Mar 25

LettuceSow outdoors · Mar 4 – Mar 18

Carrots, beetsSow outdoors · Mar 11 – Mar 25

TomatoesStart indoors · Feb 4 – Feb 18

TomatoesTransplant · Apr 8 – Apr 22

Peppers, eggplantStart indoors · Jan 21 – Feb 4

Peppers, eggplantTransplant · Apr 15 – Apr 29

BeansSow outdoors · Apr 8 – Apr 22

Sweet cornSow outdoors · Apr 8 – Apr 22

Cucumbers, squashSow outdoors · Apr 8 – Apr 22

Fall lettuce, spinachSow outdoors · Sep 10 – Sep 24

GarlicPlant cloves · Oct 22 – Nov 26

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 1) and first fall frost (Nov 5) 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 84745 came on Feb 4 — 10 days earlier than the 1991–2020 average (Feb 14).

average
Feb 142026
Feb 4

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 8a in Utah

575 plants native to the lower 48 states, recorded in Utah, and rated by the USDA to survive 10 °F or colder — the bottom of zone 8a. 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 La Verkin, UT.

Soil in La Verkin, UT

The center of ZIP 84745 is mapped as Rock outcrop: 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 84745; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in La Verkin, UT

Summer high98 °Faverage high, July

Winter low28 °Faverage low, December

Hot days118days a year at 90 °F or more

Freezing nights75nights a year at 32 °F or less

Growing degree days4,952base 50 °F — the season’s usable heat

Longest day14 h 43 mindaylight on June 21

Shortest day9 h 36 mindaylight on December 21

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

Precipitation11.6 inper year, rain and melted snow

Snowfall1 inper year; 1 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: La Verkin, UT (within 1 mile); precipitation: La Verkin, UT (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

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

847748b

Toquerville, UT · 3 mi

847468b

Leeds, UT · 5 mi

847638a

Rockville, UT · 11 mi

847796b

Virgin, UT · 12 mi

847378b

Hurricane, UT · 12 mi

847808b

Washington, UT · 13 mi

847816b

Pine Valley, UT · 17 mi

847577a

New Harmony, UT · 18 mi

Utah planting zones →

Questions about 84745

What planting zone is ZIP code 84745?

ZIP code 84745 (La Verkin, UT) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in La Verkin, UT?

The median last spring frost (32 °F) near 84745 is April 1; after April 24 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, La Verkin station.

When is the first frost in La Verkin, UT?

The median first fall frost near 84745 is November 5, giving a median frost-free growing season of 217 days.

When should I plant tomatoes in 84745?

Start tomato seeds indoors around Feb 4 – Feb 18 and set transplants outside around Apr 8 – Apr 22, one to three weeks after the median last frost.

How much rain and snow does 84745 get?

About 11.6 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, La Verkin station).

How hot do summers get in La Verkin, UT?

The average high peaks at 98 °F in July, with about 118 days a year at 90 °F or more.

Did spring come early in La Verkin, UT in 2026?

Spring leaf-out near 84745 came on Feb 4 in 2026, 10 days earlier than the 1991–2020 average (Feb 14), according to the USA National Phenology Network Spring Index.

What kind of onions grow in La Verkin, UT?

Intermediate onions: the longest day near 84745 is 14 h 43 min, so day-neutral types bulb best; long-day varieties may not bulb fully.