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

Planting zone for 97364 — Neotsu, OR

ZIP code 97364 (Neotsu, Lincoln County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is April 4 and the first fall frost November 16.

Where ZIP 97364 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 frostApr 4
First frostNov 16
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 Neotsu, 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 Neotsu, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 4median — 50% chance of a later frost
Safe for tender plantsMay 3only 10% chance of frost after
First fall frostNovember 16median — 10% chance by Oct 26
Growing season227 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 18 and returns around December 8.

From the NOAA station Otis 2 Ne, OR — 4 miles away, elevation 151 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 97364

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 21 – Mar 7
SpinachSow outdoors · Feb 21 – Mar 14
Broccoli, cabbageStart indoors · Jan 24 – Feb 7
Broccoli, cabbageTransplant · Mar 14 – Mar 28
Onion setsPlant outdoors · Mar 7 – Mar 21
PotatoesPlant outdoors · Mar 14 – Mar 28
LettuceSow outdoors · Mar 7 – Mar 21
Carrots, beetsSow outdoors · Mar 14 – Mar 28
TomatoesStart indoors · Feb 7 – Feb 21
TomatoesTransplant · Apr 11 – Apr 25
Peppers, eggplantStart indoors · Jan 24 – Feb 7
Peppers, eggplantTransplant · Apr 18 – May 2
BeansSow outdoors · Apr 11 – Apr 25
Sweet cornSow outdoors · Apr 11 – Apr 25
Cucumbers, squashSow outdoors · Apr 11 – Apr 25
Fall lettuce, spinachSow outdoors · Sep 21 – Oct 5
GarlicPlant cloves · Nov 2 – Dec 7
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 4) and first fall frost (Nov 16) 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 97364 came on Feb 1 — 3 days earlier than the 1991–2020 average (Feb 4).

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

Shrubs 133

Wildflowers & perennials 305

Grasses 169

Vines 2

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 Neotsu, OR.

Soil in Neotsu, OR

The soil mapped at the center of ZIP 97364 is Fendall — medial silt loam, well drained.

TextureMedial silt loama good balance for most vegetables
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter12%high
Hydrologic groupCwater soaks in slowly
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Fendall-Winema silt loams, 15 to 35 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 97364; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Neotsu, OR

Summer high72 °Faverage high, August
Winter low37 °Faverage low, December
Hot days2days a year at 90 °F or more
Freezing nights32nights a year at 32 °F or less
Growing degree days1,601base 50 °F — the season’s usable heat
Longest day15 h 37 mindaylight on June 21
Shortest day8 h 46 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation96.4 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°32 °FJanuary: average high 49 °F, low 38 °F 49°38° JanFebruary: average high 52 °F, low 38 °F 52°38° FebMarch: average high 55 °F, low 39 °F 55°39° MarApril: average high 59 °F, low 41 °F 59°41° AprMay: average high 63 °F, low 45 °F 63°45° MayJune: average high 66 °F, low 49 °F 66°49° JunJuly: average high 71 °F, low 51 °F 71°51° JulAugust: average high 72 °F, low 52 °F 72°52° AugSeptember: average high 70 °F, low 49 °F 70°49° SepOctober: average high 61 °F, low 45 °F 61°45° OctNovember: average high 53 °F, low 41 °F 53°41° NovDecember: average high 48 °F, low 37 °F 48°37° Dec

Precipitation by month inches

0″2″4″6″8″10″12″14″16″January: 14.58 in precipitation, 0.1 in snowfall 14.6 JanFebruary: 10.53 in precipitation 10.5 FebMarch: 10.79 in precipitation 10.8 MarApril: 8.17 in precipitation 8.2 AprMay: 4.69 in precipitation 4.7 MayJune: 3.50 in precipitation 3.5 JunJuly: 0.90 in precipitation 0.9 JulAugust: 1.40 in precipitation 1.4 AugSeptember: 3.38 in precipitation 3.4 SepOctober: 8.47 in precipitation 8.5 OctNovember: 14.13 in precipitation 14.1 NovDecember: 15.85 in precipitation 15.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Otis 2 Ne, OR (4 mi away); precipitation: Otis 2 Ne, OR (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Oregon planting zones →

Questions about 97364

What planting zone is ZIP code 97364?

ZIP code 97364 (Neotsu, 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 Neotsu, OR?

The median last spring frost (32 °F) near 97364 is April 4; after May 3 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Otis 2 Ne station.

When is the first frost in Neotsu, OR?

The median first fall frost near 97364 is November 16, giving a median frost-free growing season of 227 days.

When should I plant tomatoes in 97364?

Start tomato seeds indoors around Feb 7 – Feb 21 and set transplants outside around Apr 11 – Apr 25, one to three weeks after the median last frost.

How much rain and snow does 97364 get?

About 96.4 inches of precipitation a year (NOAA 1991–2020 normals, Otis 2 Ne station).

How hot do summers get in Neotsu, OR?

The average high peaks at 72 °F in August, with about 2 days a year at 90 °F or more.

What kind of soil does 97364 have?

The USDA soil survey maps Fendall at the center of ZIP 97364: medial silt loam, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Neotsu, OR in 2026?

Spring leaf-out near 97364 came on Feb 1 in 2026, 3 days earlier than the 1991–2020 average (Feb 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Neotsu, OR?

Long-day onions: the longest day near 97364 is 15 h 37 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).