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

Planting zone for Ogden, UT

Ogden, UT is in USDA zones 6b to 7a across its 12 ZIP codes. The median last spring frost is April 21 and the first fall frost October 23.

Ogden on the zone map

Outlined: its 6 ZIP code areas · 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.

Zones6b–7a−5 to 5 °F
ZIP codes12
Last frostApr 21
First frostOct 23
Growing season184 days

6b 4 ZIPs   7a 8 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Ogden, 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 Ogden, UT

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 21median — 50% chance of a later frost
Safe for tender plantsMay 6only 10% chance of frost after
First fall frostOctober 23median — 10% chance by Oct 8
Growing season184 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 5 and returns around November 3.

From the NOAA station Ogden Pioneer Ph, UT, elevation 4,351 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 Ogden

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 10 – Mar 24
SpinachSow outdoors · Mar 10 – Mar 31
Broccoli, cabbageStart indoors · Feb 10 – Feb 24
Broccoli, cabbageTransplant · Mar 31 – Apr 14
Onion setsPlant outdoors · Mar 24 – Apr 7
PotatoesPlant outdoors · Mar 31 – Apr 14
LettuceSow outdoors · Mar 24 – Apr 7
Carrots, beetsSow outdoors · Mar 31 – Apr 14
TomatoesStart indoors · Feb 24 – Mar 10
TomatoesTransplant · Apr 28 – May 12
Peppers, eggplantStart indoors · Feb 10 – Feb 24
Peppers, eggplantTransplant · May 5 – May 19
BeansSow outdoors · Apr 28 – May 12
Sweet cornSow outdoors · Apr 28 – May 12
Cucumbers, squashSow outdoors · Apr 28 – May 12
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 21) 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 84407 came on Mar 9 — 19 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 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

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 251

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 Ogden, UT.

Soil in Ogden, UT

The soil mapped at the center of ZIP 84407 is Sunset — loam, moderately well drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureLoama good balance for most vegetables
pH7.9alkaline; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter3.5%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Urban land-Sunset loam, rarely flooded association, 0 to 1 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 84407; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Ogden, UT

Summer high92 °Faverage high, July
Winter low22 °Faverage low, January
Hot days51days a year at 90 °F or more
Freezing nights117nights a year at 32 °F or less
Growing degree days3,438base 50 °F — the season’s usable heat
Longest day15 h 09 mindaylight on June 21
Shortest day9 h 12 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation21.6 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 38 °F, low 22 °F 38°22° JanFebruary: average high 44 °F, low 24 °F 44°24° FebMarch: average high 55 °F, low 33 °F 55°33° MarApril: average high 62 °F, low 39 °F 62°39° AprMay: average high 73 °F, low 48 °F 73°48° MayJune: average high 83 °F, low 56 °F 83°56° JunJuly: average high 92 °F, low 64 °F 92°64° JulAugust: average high 90 °F, low 63 °F 90°63° AugSeptember: average high 80 °F, low 53 °F 80°53° SepOctober: average high 66 °F, low 41 °F 66°41° OctNovember: average high 51 °F, low 31 °F 51°31° NovDecember: average high 39 °F, low 23 °F 39°23° Dec

Precipitation by month inches

0″1″2″3″January: 2.51 in precipitation 2.5 JanFebruary: 1.85 in precipitation 1.9 FebMarch: 2.27 in precipitation 2.3 MarApril: 2.45 in precipitation 2.5 AprMay: 2.58 in precipitation 2.6 MayJune: 1.48 in precipitation 1.5 JunJuly: 0.63 in precipitation 0.6 JulAugust: 0.74 in precipitation 0.7 AugSeptember: 1.50 in precipitation 1.5 SepOctober: 2.12 in precipitation 2.1 OctNovember: 1.67 in precipitation 1.7 NovDecember: 1.76 in precipitation 1.8 Dec

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

ZIP codes in Ogden

842447a
0 to 5 °F
844017a
0 to 5 °F
844027a
0 to 5 °F
844036b
−5 to 0 °F
844047a
0 to 5 °F
844057a
0 to 5 °F
844077a
0 to 5 °F
844086b
−5 to 0 °F
844097a
0 to 5 °F
844127a
0 to 5 °F
844146b
−5 to 0 °F
844156b
−5 to 0 °F

Utah planting zones →

Questions about Ogden

What planting zone is Ogden, UT?

Ogden, UT is in USDA hardiness zones 6b to 7a on the 2023 map (6b: −5 to 0 °F; 7a: 0 to 5 °F).

When is the last frost in Ogden, UT?

The median last spring frost is April 21 and the median first fall frost is October 23 (NOAA 1991–2020 normals, Ogden Pioneer Ph station).

When can I plant a garden in Ogden, UT?

Cool-season crops like peas and spinach go in around Mar 10 – Mar 31; tomatoes, peppers, beans and squash after about Apr 28, once frost risk has passed.

What kind of onions grow in Ogden, UT?

Long-day onions: the longest day is 15 h 09 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

How much rain and snow does Ogden, UT get?

About 21.6 inches of precipitation a year (NOAA 1991–2020 normals).