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

Planting zone for 84760 — Paragonah, UT

ZIP code 84760 (Paragonah, Iron County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is June 12 and the first fall frost September 12.

Where ZIP 84760 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.

Zone6a−10 to −5 °F

Coldest night−23.3 to −20.6 °C

Last frostJun 12

First frostSep 12

2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Paragonah, 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 Paragonah, UT

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostJune 12median — 50% chance of a later frost

Safe for tender plantsJune 27only 10% chance of frost after

First fall frostSeptember 12median — 10% chance by Aug 31

Growing season90 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 29 and returns around September 22.

From the NOAA station Panguitch, UT — 16 miles away, elevation 6,647 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 84760

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · May 1 – May 15

SpinachSow outdoors · May 1 – May 22

Broccoli, cabbageStart indoors · Apr 3 – Apr 17

Broccoli, cabbageTransplant · May 22 – Jun 5

Onion setsPlant outdoors · May 15 – May 29

PotatoesPlant outdoors · May 22 – Jun 5

LettuceSow outdoors · May 15 – May 29

Carrots, beetsSow outdoors · May 22 – Jun 5

TomatoesStart indoors · Apr 17 – May 1

TomatoesTransplant · Jun 19 – Jul 3

Peppers, eggplantStart indoors · Apr 3 – Apr 17

Peppers, eggplantTransplant · Jun 26 – Jul 10

BeansSow outdoors · Jun 19 – Jul 3

Sweet cornSow outdoors · Jun 19 – Jul 3

Cucumbers, squashSow outdoors · Jun 19 – Jul 3

Fall lettuce, spinachSow outdoors · Jul 18 – Aug 1

GarlicPlant cloves · Aug 29 – Oct 3

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 12) and first fall frost (Sep 12) 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 84760 came on Mar 17 — 31 days earlier than the 1991–2020 average (Apr 17).

average
Apr 172026
Mar 17

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 6a in Utah

546 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 6a. 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 Paragonah, UT.

Soil in Paragonah, UT

The soil mapped at the center of ZIP 84760 is Horrocks family — loam, well drained.

TextureLoama good balance for most vegetables

pH8.0alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter1.5%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Horrocks family-Red Butte family, bouldery association, 10 to 50 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 84760; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Paragonah, UT

Summer high86 °Faverage high, July

Winter low7 °Faverage low, December

Hot days24days a year at 90 °F or more

Freezing nights226nights a year at 32 °F or less

Growing degree days1,570base 50 °F — the season’s usable heat

Longest day14 h 48 mindaylight on June 21

Shortest day9 h 32 mindaylight on December 21

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

Precipitation23.6 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: Panguitch, UT (16 mi away); precipitation: Yankee Reservoir, UT (15 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.

847616a

Parowan, UT · 13 mi

847596a

Panguitch, UT · 15 mi

847316a

Greenville, UT · 17 mi

847726b

Summit, UT · 19 mi

847196a

Brian Head, UT · 21 mi

847356a

Hatch, UT · 24 mi

847526a

Minersville, UT · 24 mi

847235b

Circleville, UT · 27 mi

Utah planting zones →

Questions about 84760

What planting zone is ZIP code 84760?

ZIP code 84760 (Paragonah, UT) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Paragonah, UT?

The median last spring frost (32 °F) near 84760 is June 12; after June 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Panguitch station.

When is the first frost in Paragonah, UT?

The median first fall frost near 84760 is September 12, giving a median frost-free growing season of 90 days.

When should I plant tomatoes in 84760?

Start tomato seeds indoors around Apr 17 – May 1 and set transplants outside around Jun 19 – Jul 3, one to three weeks after the median last frost.

How much rain and snow does 84760 get?

About 23.6 inches of precipitation a year (NOAA 1991–2020 normals, Yankee Reservoir station).

How hot do summers get in Paragonah, UT?

The average high peaks at 86 °F in July, with about 24 days a year at 90 °F or more.

What kind of soil does 84760 have?

The USDA soil survey maps Horrocks family at the center of ZIP 84760: loam, well drained, pH about 8.0 (alkaline).

Did spring come early in Paragonah, UT in 2026?

Spring leaf-out near 84760 came on Mar 17 in 2026, 31 days earlier than the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Paragonah, UT?

Intermediate onions: the longest day near 84760 is 14 h 48 min, so day-neutral types bulb best; long-day varieties may not bulb fully.