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

Planting zone for 97033 — Kent, OR

ZIP code 97033 (Kent, Sherman County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is May 15 and the first fall frost October 11.

Where ZIP 97033 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 frostMay 15
First frostOct 11
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 Kent, OR…

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 Kent, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 15median — 50% chance of a later frost
Safe for tender plantsJune 6only 10% chance of frost after
First fall frostOctober 11median — 10% chance by Sep 27
Growing season147 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 30 and returns around October 23.

From the NOAA station Kent, OR — 6 miles away, elevation 2,710 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 97033

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 3 – Apr 17
SpinachSow outdoors · Apr 3 – Apr 24
Broccoli, cabbageStart indoors · Mar 6 – Mar 20
Broccoli, cabbageTransplant · Apr 24 – May 8
Onion setsPlant outdoors · Apr 17 – May 1
PotatoesPlant outdoors · Apr 24 – May 8
LettuceSow outdoors · Apr 17 – May 1
Carrots, beetsSow outdoors · Apr 24 – May 8
TomatoesStart indoors · Mar 20 – Apr 3
TomatoesTransplant · May 22 – Jun 5
Peppers, eggplantStart indoors · Mar 6 – Mar 20
Peppers, eggplantTransplant · May 29 – Jun 12
BeansSow outdoors · May 22 – Jun 5
Sweet cornSow outdoors · May 22 – Jun 5
Cucumbers, squashSow outdoors · May 22 – Jun 5
Fall lettuce, spinachSow outdoors · Aug 16 – Aug 30
GarlicPlant cloves · Sep 27 – Nov 1
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 15) and first fall frost (Oct 11) 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 97033 came on Mar 14 — 7 days earlier than the 1991–2020 average (Mar 21).

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 Oregon

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

Trees 40

Alaska cedar75 ft · blooms mid spring · low shade tolerance · to −22 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fbigleaf maple60 ft · blooms mid spring · medium shade tolerance · to −14 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fboxelder60 ft · blooms early spring · low shade tolerance · to −46 °FBrewer spruce100 ft · blooms early summer · low shade tolerance · to −13 °F

Shrubs 119

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 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °Fbeaked hazelnut15 ft · blooms early spring · low shade tolerance · to −47 °Fbig sagebrush4 ft · blooms mid summer · high shade tolerance · to −43 °F

Wildflowers & perennials 290

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 eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °F

Grasses 164

Alaska brome5 ft · blooms late spring · low shade tolerance · to −18 °FAlaska oniongrass3 ft · blooms mid spring · low shade tolerance · to −33 °Falkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °FAmerican beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °F

Vines 2

riverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °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 Kent, OR.

Soil in Kent, OR

The soil mapped at the center of ZIP 97033 is Condon — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH6.7neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupCwater soaks in slowly
Farmland classPrime farmland if irrigatedUSDA classification

Map unit: Condon silt loam, 1 to 7 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 97033; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kent, OR

Summer high86 °Faverage high, July
Winter low25 °Faverage low, January
Hot days27days a year at 90 °F or more
Freezing nights134nights a year at 32 °F or less
Growing degree days2,215base 50 °F — the season’s usable heat
Longest day15 h 39 mindaylight on June 21
Shortest day8 h 44 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation14.1 inper year, rain and melted snow
Snowfall26 inper year

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 26 °F 45°26° FebMarch: average high 53 °F, low 31 °F 53°31° MarApril: average high 59 °F, low 34 °F 59°34° AprMay: average high 68 °F, low 41 °F 68°41° MayJune: average high 75 °F, low 46 °F 75°46° JunJuly: average high 86 °F, low 52 °F 86°52° JulAugust: average high 86 °F, low 52 °F 86°52° AugSeptember: average high 77 °F, low 47 °F 77°47° SepOctober: average high 63 °F, low 37 °F 63°37° OctNovember: average high 48 °F, low 30 °F 48°30° NovDecember: average high 39 °F, low 25 °F 39°25° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″January: 1.81 in precipitation, 5.6 in snowfall 1.8❄6 JanFebruary: 1.26 in precipitation, 4.7 in snowfall 1.3❄5 FebMarch: 1.20 in precipitation, 2 in snowfall 1.2❄2 MarApril: 1.30 in precipitation, 1 in snowfall 1.3❄1 AprMay: 1.65 in precipitation 1.6 MayJune: 1.11 in precipitation 1.1 JunJuly: 0.39 in precipitation 0.4 JulAugust: 0.38 in precipitation 0.4 AugSeptember: 0.47 in precipitation 0.5 SepOctober: 1.17 in precipitation, 0.2 in snowfall 1.2 OctNovember: 1.51 in precipitation, 1.7 in snowfall 1.5❄2 NovDecember: 1.82 in precipitation, 10.3 in snowfall 1.8❄10 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Kent, OR (6 mi away); precipitation: Condon, OR (20 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.

970297a
Grass Valley, OR · 13 mi
970017a
Antelope, OR · 15 mi
970576b
Shaniko, OR · 16 mi
970397a
Moro, OR · 19 mi
978237a
Condon, OR · 19 mi
970377a
Maupin, OR · 24 mi
978617b
Mikkalo, OR · 25 mi
978307a
Fossil, OR · 25 mi

Oregon planting zones →

Questions about 97033

What planting zone is ZIP code 97033?

ZIP code 97033 (Kent, OR) 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 Kent, OR?

The median last spring frost (32 °F) near 97033 is May 15; after June 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Kent station.

When is the first frost in Kent, OR?

The median first fall frost near 97033 is October 11, giving a median frost-free growing season of 147 days.

When should I plant tomatoes in 97033?

Start tomato seeds indoors around Mar 20 – Apr 3 and set transplants outside around May 22 – Jun 5, one to three weeks after the median last frost.

How much rain and snow does 97033 get?

About 14.1 inches of precipitation a year and 26 inches of snowfall (NOAA 1991–2020 normals, Condon station).

How hot do summers get in Kent, OR?

The average high peaks at 86 °F in July, with about 27 days a year at 90 °F or more.

What kind of soil does 97033 have?

The USDA soil survey maps Condon at the center of ZIP 97033: silt loam, well drained, pH about 6.7 (neutral).

Did spring come early in Kent, OR in 2026?

Spring leaf-out near 97033 came on Mar 14 in 2026, 7 days earlier than the 1991–2020 average (Mar 21), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kent, OR?

Long-day onions: the longest day near 97033 is 15 h 39 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).