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

Planting zone for 97466 — Powers, OR

ZIP code 97466 (Powers, Coos County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is March 21 and the first fall frost November 14.

Where ZIP 97466 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.

Zone9a20 to 25 °F
Coldest night−6.7 to −3.9 °C
Last frostMar 21
First frostNov 14
2012 zone9a

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 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Powers, 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 Powers, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 21median — 50% chance of a later frost
Safe for tender plantsApril 12only 10% chance of frost after
First fall frostNovember 14median — 10% chance by Oct 21
Growing season241 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 6 and returns around December 9.

From the NOAA station Powers, OR — 3 miles away, elevation 230 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 97466

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 7 – Feb 21
SpinachSow outdoors · Feb 7 – Feb 28
Broccoli, cabbageStart indoors · Jan 10 – Jan 24
Broccoli, cabbageTransplant · Feb 28 – Mar 14
Onion setsPlant outdoors · Feb 21 – Mar 7
PotatoesPlant outdoors · Feb 28 – Mar 14
LettuceSow outdoors · Feb 21 – Mar 7
Carrots, beetsSow outdoors · Feb 28 – Mar 14
TomatoesStart indoors · Jan 24 – Feb 7
TomatoesTransplant · Mar 28 – Apr 11
Peppers, eggplantStart indoors · Jan 10 – Jan 24
Peppers, eggplantTransplant · Apr 4 – Apr 18
BeansSow outdoors · Mar 28 – Apr 11
Sweet cornSow outdoors · Mar 28 – Apr 11
Cucumbers, squashSow outdoors · Mar 28 – Apr 11
Fall lettuce, spinachSow outdoors · Sep 19 – Oct 3
GarlicPlant cloves · Oct 31 – Dec 5
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 21) and first fall frost (Nov 14) 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 97466 came on Feb 2 — 7 days earlier than the 1991–2020 average (Feb 9).

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 9a in Oregon

666 plants native to the lower 48 states, recorded in Oregon, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. Each links to its USDA PLANTS profile.

Trees 44

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 °FBishop pine90 ft · blooms mid spring · low shade tolerance · to 17 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fboxelder60 ft · blooms early spring · low shade tolerance · to −46 °F

Shrubs 133

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 305

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 169

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 Powers, OR.

Soil in Powers, OR

The soil mapped at the center of ZIP 97466 is Digger — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer
pH4.5strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter75%high
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Digger-Umpcoos-Rock outcrop association, 50 to 90 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 97466; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Powers, OR

Summer high80 °Faverage high, August
Winter low37 °Faverage low, January
Hot days11days a year at 90 °F or more
Freezing nights40nights a year at 32 °F or less
Growing degree days2,467base 50 °F — the season’s usable heat
Longest day15 h 21 mindaylight on June 21
Shortest day9 h 01 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation58.6 inper year, rain and melted snow
Snowfall1 inper year

Average high and low, by month

30°40°50°60°70°80°90°32 °FJanuary: average high 54 °F, low 37 °F 54°37° JanFebruary: average high 57 °F, low 38 °F 57°38° FebMarch: average high 59 °F, low 39 °F 59°39° MarApril: average high 63 °F, low 41 °F 63°41° AprMay: average high 68 °F, low 46 °F 68°46° MayJune: average high 73 °F, low 50 °F 73°50° JunJuly: average high 79 °F, low 53 °F 79°53° JulAugust: average high 80 °F, low 52 °F 80°52° AugSeptember: average high 79 °F, low 49 °F 79°49° SepOctober: average high 70 °F, low 43 °F 70°43° OctNovember: average high 58 °F, low 41 °F 58°41° NovDecember: average high 52 °F, low 37 °F 52°37° Dec

Precipitation by month inches · ❄ = snowfall

0″2″4″6″8″10″January: 9.37 in precipitation, 0.3 in snowfall 9.4 JanFebruary: 7.49 in precipitation, 0.2 in snowfall 7.5 FebMarch: 7.88 in precipitation 7.9 MarApril: 5.42 in precipitation 5.4 AprMay: 2.90 in precipitation 2.9 MayJune: 1.31 in precipitation 1.3 JunJuly: 0.29 in precipitation 0.3 JulAugust: 0.32 in precipitation 0.3 AugSeptember: 1.13 in precipitation 1.1 SepOctober: 3.76 in precipitation 3.8 OctNovember: 7.93 in precipitation 7.9 NovDecember: 10.82 in precipitation, 0.1 in snowfall 10.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Powers, OR (3 mi away); precipitation: Powers, OR (3 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.

974149a
Broadbent, OR · 9 mi
974589a
Myrtle Point, OR · 14 mi
974659b
Port Orford, OR · 14 mi
974509a
Langlois, OR · 15 mi
974769b
Sixes, OR · 16 mi
974069a
Agness, OR · 16 mi
974119b
Bandon, OR · 20 mi
974919b
Wedderburn, OR · 23 mi

Oregon planting zones →

Questions about 97466

What planting zone is ZIP code 97466?

ZIP code 97466 (Powers, OR) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Powers, OR?

The median last spring frost (32 °F) near 97466 is March 21; after April 12 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Powers station.

When is the first frost in Powers, OR?

The median first fall frost near 97466 is November 14, giving a median frost-free growing season of 241 days.

When should I plant tomatoes in 97466?

Start tomato seeds indoors around Jan 24 – Feb 7 and set transplants outside around Mar 28 – Apr 11, one to three weeks after the median last frost.

How much rain and snow does 97466 get?

About 58.6 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Powers station).

How hot do summers get in Powers, OR?

The average high peaks at 80 °F in August, with about 11 days a year at 90 °F or more.

What kind of soil does 97466 have?

The USDA soil survey maps Digger at the center of ZIP 97466: slightly decomposed plant material, well drained, pH about 4.5 (strongly acidic).

Did spring come early in Powers, OR in 2026?

Spring leaf-out near 97466 came on Feb 2 in 2026, 7 days earlier than the 1991–2020 average (Feb 9), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Powers, OR?

Long-day onions: the longest day near 97466 is 15 h 21 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).