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

Planting zone for 84096 — Herriman, UT

ZIP code 84096 (Herriman, Salt Lake County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 18 and the first fall frost October 22.

Where ZIP 84096 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 18
First frostOct 22
2012 zone7a

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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Herriman, 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 Herriman, 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 6only 10% chance of frost after
First fall frostOctober 22median — 10% chance by Oct 7
Growing season185 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 31 and returns around November 2.

From the NOAA station Draper-Point Of Mtn, UT — 11 miles away, elevation 4,505 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 84096

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 27 – Sep 10
GarlicPlant cloves · Oct 8 – Nov 12
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 18) and first fall frost (Oct 22) 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 84096 came on Mar 16 — 12 days earlier than the 1991–2020 average (Mar 28).

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 7a in Utah

561 plants native to the lower 48 states, recorded in Utah, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

Trees 30

American beech80 ft · blooms mid spring · low shade tolerance · to −44 °FArizona cypress50 ft · blooms spring · low shade tolerance · to −23 °FArizona walnut50 ft · blooms late spring · high shade tolerance · to −33 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fblack walnut100 ft · blooms late spring · high shade tolerance · to −28 °F

Shrubs 112

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °Falderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Falpine laurel1 ft · blooms late spring · low shade tolerance · to −28 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FApache plume6 ft · blooms late spring · high shade tolerance · to −23 °F

Wildflowers & perennials 254

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bistort1.5 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 154

alkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAlpine Meadow-Foxtail0.5 ft · blooms mid spring · medium shade tolerance · to −33 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °Farctic bluegrass2 ft · high shade tolerance · to −62 °F

Vines 3

trumpet creeper2 ft · blooms summer · high shade tolerance · to −13 °FVirginia creeper1 ft · blooms late spring · medium shade tolerance · to −28 °Fwestern white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °F

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 Herriman, UT.

Soil in Herriman, UT

The soil mapped at the center of ZIP 84096 is Butterfield — very cobbly loam, well drained.

TextureVery cobbly loama good balance for most vegetables
pH7.0neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Butterfield association, moderately steep.

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 84096; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Herriman, UT

Summer high94 °Faverage high, July
Winter low25 °Faverage low, January
Hot days78days a year at 90 °F or more
Freezing nights116nights a year at 32 °F or less
Growing degree days3,706base 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)
Precipitation32.4 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 40 °F, low 25 °F 40°25° JanFebruary: average high 45 °F, low 29 °F 45°29° FebMarch: average high 56 °F, low 36 °F 56°36° MarApril: average high 62 °F, low 40 °F 62°40° AprMay: average high 74 °F, low 49 °F 74°49° MayJune: average high 85 °F, low 58 °F 85°58° JunJuly: average high 94 °F, low 66 °F 94°66° JulAugust: average high 92 °F, low 65 °F 92°65° AugSeptember: average high 81 °F, low 54 °F 81°54° SepOctober: average high 67 °F, low 42 °F 67°42° OctNovember: average high 51 °F, low 33 °F 51°33° NovDecember: average high 41 °F, low 26 °F 41°26° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.20 in precipitation 3.2 JanFebruary: 3.14 in precipitation 3.1 FebMarch: 3.98 in precipitation 4.0 MarApril: 4.33 in precipitation 4.3 AprMay: 3.09 in precipitation 3.1 MayJune: 1.55 in precipitation 1.6 JunJuly: 1.26 in precipitation 1.3 JulAugust: 1.18 in precipitation 1.2 AugSeptember: 1.76 in precipitation 1.8 SepOctober: 2.54 in precipitation 2.5 OctNovember: 3.07 in precipitation 3.1 NovDecember: 3.31 in precipitation 3.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Draper-Point Of Mtn, UT (11 mi away); precipitation: Dry Fork, UT (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

840097a
South Jordan, UT · 6 mi
840067a
Bingham Canyon, UT · 8 mi
840657a
Riverton, UT · 8 mi
840817b
West Jordan, UT · 9 mi
840957a
South Jordan, UT · 10 mi
840887b
West Jordan, UT · 10 mi
840847b
West Jordan, UT · 12 mi
841187b
Salt Lake City, UT · 12 mi

Utah planting zones →

Questions about 84096

What planting zone is ZIP code 84096?

ZIP code 84096 (Herriman, UT) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Herriman, UT?

The median last spring frost (32 °F) near 84096 is April 18; after May 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Draper-Point Of Mtn station.

When is the first frost in Herriman, UT?

The median first fall frost near 84096 is October 22, giving a median frost-free growing season of 185 days.

When should I plant tomatoes in 84096?

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 84096 get?

About 32.4 inches of precipitation a year (NOAA 1991–2020 normals, Dry Fork station).

How hot do summers get in Herriman, UT?

The average high peaks at 94 °F in July, with about 78 days a year at 90 °F or more.

What kind of soil does 84096 have?

The USDA soil survey maps Butterfield at the center of ZIP 84096: very cobbly loam, well drained, pH about 7.0 (neutral).

Did spring come early in Herriman, UT in 2026?

Spring leaf-out near 84096 came on Mar 16 in 2026, 12 days earlier than the 1991–2020 average (Mar 28), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Herriman, UT?

Long-day onions: the longest day near 84096 is 15 h 04 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).