Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 98566 — Neilton, WA

ZIP code 98566 (Neilton, Grays Harbor County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is April 7 and the first fall frost November 10.

Where ZIP 98566 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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostApr 7

First frostNov 10

2012 zone8b

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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Neilton, WA…

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 Neilton, WA

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 7median — 50% chance of a later frost

Safe for tender plantsMay 6only 10% chance of frost after

First fall frostNovember 10median — 10% chance by Oct 23

Growing season214 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 2 and returns around November 29.

From the NOAA station Quinault 4 Ne, WA — 11 miles away, elevation 285 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 98566

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 24 – Mar 10

SpinachSow outdoors · Feb 24 – Mar 17

Broccoli, cabbageStart indoors · Jan 27 – Feb 10

Broccoli, cabbageTransplant · Mar 17 – Mar 31

Onion setsPlant outdoors · Mar 10 – Mar 24

PotatoesPlant outdoors · Mar 17 – Mar 31

LettuceSow outdoors · Mar 10 – Mar 24

Carrots, beetsSow outdoors · Mar 17 – Mar 31

TomatoesStart indoors · Feb 10 – Feb 24

TomatoesTransplant · Apr 14 – Apr 28

Peppers, eggplantStart indoors · Jan 27 – Feb 10

Peppers, eggplantTransplant · Apr 21 – May 5

BeansSow outdoors · Apr 14 – Apr 28

Sweet cornSow outdoors · Apr 14 – Apr 28

Cucumbers, squashSow outdoors · Apr 14 – Apr 28

Fall lettuce, spinachSow outdoors · Sep 15 – Sep 29

GarlicPlant cloves · Oct 27 – Dec 1

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 7) and first fall frost (Nov 10) 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 98566 came on Feb 13 — 12 days earlier than the 1991–2020 average (Feb 25).

average
Feb 252026
Feb 13

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 8b in Washington

614 plants native to the lower 48 states, recorded in Washington, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. Each links to its USDA PLANTS profile.

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 Neilton, WA.

Soil in Neilton, WA

The center of ZIP 98566 is mapped as Not Public Information: built-over ground without natural soil data. Garden soil here is usually imported or disturbed — test before you plant.

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 98566; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Neilton, WA

Summer high73 °Faverage high, July

Winter low35 °Faverage low, January

Hot days4days a year at 90 °F or more

Freezing nights57nights a year at 32 °F or less

Growing degree days1,508base 50 °F — the season’s usable heat

Longest day15 h 57 mindaylight on June 21

Shortest day8 h 27 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation151.4 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Quinault 4 Ne, WA (11 mi away); precipitation: Quinault 4 Ne, WA (11 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.

985268b

Amanda Park, WA · 5 mi

985528b

Humptulips, WA · 6 mi

Copalis Crossing, WA · 16 mi

985719a

Pacific Beach, WA · 18 mi

985508b

Hoquiam, WA · 20 mi

Washington planting zones →

Questions about 98566

What planting zone is ZIP code 98566?

ZIP code 98566 (Neilton, WA) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Neilton, WA?

The median last spring frost (32 °F) near 98566 is April 7; after May 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Quinault 4 Ne station.

When is the first frost in Neilton, WA?

The median first fall frost near 98566 is November 10, giving a median frost-free growing season of 214 days.

When should I plant tomatoes in 98566?

Start tomato seeds indoors around Feb 10 – Feb 24 and set transplants outside around Apr 14 – Apr 28, one to three weeks after the median last frost.

How much rain and snow does 98566 get?

About 151.4 inches of precipitation a year (NOAA 1991–2020 normals, Quinault 4 Ne station).

How hot do summers get in Neilton, WA?

The average high peaks at 73 °F in July, with about 4 days a year at 90 °F or more.

Did spring come early in Neilton, WA in 2026?

Spring leaf-out near 98566 came on Feb 13 in 2026, 12 days earlier than the 1991–2020 average (Feb 25), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Neilton, WA?

Long-day onions: the longest day near 98566 is 15 h 57 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).