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

Planting zone for 84310 — Eden, UT

ZIP code 84310 (Eden, Weber County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 25 and the first fall frost September 26.

Where ZIP 84310 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 frostMay 25
First frostSep 26
2012 zone5b

Was 5b on the 2012 map — half a zone warmer now. 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 Eden, 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 Eden, UT

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 25median — 50% chance of a later frost
Safe for tender plantsJune 16only 10% chance of frost after
First fall frostSeptember 26median — 10% chance by Sep 12
Growing season123 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 4 and returns around October 7.

From the NOAA station Eden-Liberty, UT — within 1 mile, elevation 5,194 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 84310

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 13 – Apr 27
SpinachSow outdoors · Apr 13 – May 4
Broccoli, cabbageStart indoors · Mar 16 – Mar 30
Broccoli, cabbageTransplant · May 4 – May 18
Onion setsPlant outdoors · Apr 27 – May 11
PotatoesPlant outdoors · May 4 – May 18
LettuceSow outdoors · Apr 27 – May 11
Carrots, beetsSow outdoors · May 4 – May 18
TomatoesStart indoors · Mar 30 – Apr 13
TomatoesTransplant · Jun 1 – Jun 15
Peppers, eggplantStart indoors · Mar 16 – Mar 30
Peppers, eggplantTransplant · Jun 8 – Jun 22
BeansSow outdoors · Jun 1 – Jun 15
Sweet cornSow outdoors · Jun 1 – Jun 15
Cucumbers, squashSow outdoors · Jun 1 – Jun 15
Fall lettuce, spinachSow outdoors · Aug 1 – Aug 15
GarlicPlant cloves · Sep 12 – Oct 17
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 25) and first fall frost (Sep 26) 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 84310 came on Mar 23 — 22 days earlier than the 1991–2020 average (Apr 14).

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.

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 107

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 248

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 151

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 Eden, UT.

Soil in Eden, UT

The soil mapped at the center of ZIP 84310 is Yeates Hollow — very stony loam, well drained.

TextureVery stony loama good balance for most vegetables
pH6.3slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter3.5%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Yeates Hollow very stony loam, 10 to 30 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 84310; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Eden, UT

Summer high87 °Faverage high, July
Winter low15 °Faverage low, January
Hot days24days a year at 90 °F or more
Freezing nights175nights a year at 32 °F or less
Growing degree days2,026base 50 °F — the season’s usable heat
Longest day15 h 10 mindaylight on June 21
Shortest day9 h 11 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation28.2 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 33 °F, low 15 °F 33°15° JanFebruary: average high 37 °F, low 18 °F 37°18° FebMarch: average high 49 °F, low 26 °F 49°26° MarApril: average high 56 °F, low 33 °F 56°33° AprMay: average high 66 °F, low 39 °F 66°39° MayJune: average high 77 °F, low 45 °F 77°45° JunJuly: average high 87 °F, low 52 °F 87°52° JulAugust: average high 86 °F, low 51 °F 86°51° AugSeptember: average high 76 °F, low 42 °F 76°42° SepOctober: average high 63 °F, low 32 °F 63°32° OctNovember: average high 47 °F, low 25 °F 47°25° NovDecember: average high 34 °F, low 16 °F 34°16° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.40 in precipitation 3.4 JanFebruary: 2.76 in precipitation 2.8 FebMarch: 2.64 in precipitation 2.6 MarApril: 2.79 in precipitation 2.8 AprMay: 2.75 in precipitation 2.8 MayJune: 1.89 in precipitation 1.9 JunJuly: 0.90 in precipitation 0.9 JulAugust: 0.97 in precipitation 1.0 AugSeptember: 1.70 in precipitation 1.7 SepOctober: 2.95 in precipitation 3.0 OctNovember: 2.49 in precipitation 2.5 NovDecember: 2.96 in precipitation 3.0 Dec

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

Nearby ZIP codes

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

844146b
Ogden, UT · 6 mi
842447a
Ogden, UT · 8 mi
844027a
Ogden, UT · 8 mi
844097a
Ogden, UT · 8 mi
844127a
Ogden, UT · 8 mi
844156b
Ogden, UT · 8 mi
844036b
Ogden, UT · 9 mi
844077a
Ogden, UT · 9 mi

Utah planting zones →

Questions about 84310

What planting zone is ZIP code 84310?

ZIP code 84310 (Eden, 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 Eden, UT?

The median last spring frost (32 °F) near 84310 is May 25; after June 16 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Eden-Liberty station.

When is the first frost in Eden, UT?

The median first fall frost near 84310 is September 26, giving a median frost-free growing season of 123 days.

When should I plant tomatoes in 84310?

Start tomato seeds indoors around Mar 30 – Apr 13 and set transplants outside around Jun 1 – Jun 15, one to three weeks after the median last frost.

How much rain and snow does 84310 get?

About 28.2 inches of precipitation a year (NOAA 1991–2020 normals, Eden-Liberty station).

How hot do summers get in Eden, UT?

The average high peaks at 87 °F in July, with about 24 days a year at 90 °F or more.

What kind of soil does 84310 have?

The USDA soil survey maps Yeates Hollow at the center of ZIP 84310: very stony loam, well drained, pH about 6.3 (slightly acidic).

Did spring come early in Eden, UT in 2026?

Spring leaf-out near 84310 came on Mar 23 in 2026, 22 days earlier than the 1991–2020 average (Apr 14), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Eden, UT?

Long-day onions: the longest day near 84310 is 15 h 10 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 84310 change?

Yes. The 2012 USDA map put 84310 in zone 5b; the 2023 map puts it in zone 6a. The newer map uses 1991–2020 data and more weather stations.