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

Planting zone for 98672 — White Salmon, WA

ZIP code 98672 (White Salmon, Klickitat County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is May 12 and the first fall frost October 11.

Where ZIP 98672 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.

Zone7b5 to 10 °F

Coldest night−15 to −12.2 °C

Last frostMay 12

First frostOct 11

2012 zone7a

Was 7a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for White Salmon, 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 White Salmon, WA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 12median — 50% chance of a later frost

Safe for tender plantsJune 7only 10% chance of frost after

First fall frostOctober 11median — 10% chance by Sep 24

Growing season149 daysfrost-free, median

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

From the NOAA station Snowden, WA — 6 miles away, elevation 2,415 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 98672

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 31 – Apr 14

SpinachSow outdoors · Mar 31 – Apr 21

Broccoli, cabbageStart indoors · Mar 3 – Mar 17

Broccoli, cabbageTransplant · Apr 21 – May 5

Onion setsPlant outdoors · Apr 14 – Apr 28

PotatoesPlant outdoors · Apr 21 – May 5

LettuceSow outdoors · Apr 14 – Apr 28

Carrots, beetsSow outdoors · Apr 21 – May 5

TomatoesStart indoors · Mar 17 – Mar 31

TomatoesTransplant · May 19 – Jun 2

Peppers, eggplantStart indoors · Mar 3 – Mar 17

Peppers, eggplantTransplant · May 26 – Jun 9

BeansSow outdoors · May 19 – Jun 2

Sweet cornSow outdoors · May 19 – Jun 2

Cucumbers, squashSow outdoors · May 19 – Jun 2

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 12) 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 98672 came on Mar 6 — 14 days earlier than the 1991–2020 average (Mar 20).

average
Mar 202026
Mar 6

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 7b in Washington

592 plants native to the lower 48 states, recorded in Washington, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. 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 White Salmon, WA.

Soil in White Salmon, WA

The soil mapped at the center of ZIP 98672 is Hood — loam, well drained.

TextureLoama good balance for most vegetables

pH6.1slightly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter3.5%moderate

Hydrologic groupBwater soaks in moderately

Farmland classFarmland of statewide importanceUSDA classification

Map unit: Hood loam, 8 to 15 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 98672; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in White Salmon, WA

Summer high79 °Faverage high, July

Winter low25 °Faverage low, December

Hot days8days a year at 90 °F or more

Freezing nights141nights a year at 32 °F or less

Growing degree days1,504base 50 °F — the season’s usable heat

Longest day15 h 44 mindaylight on June 21

Shortest day8 h 40 mindaylight on December 21

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

Precipitation36.7 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: Snowden, WA (6 mi away); precipitation: Hood River 0.8 Sw, OR (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Trout Lake, WA · 9 mi

Washington planting zones →

Questions about 98672

What planting zone is ZIP code 98672?

ZIP code 98672 (White Salmon, WA) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in White Salmon, WA?

The median last spring frost (32 °F) near 98672 is May 12; after June 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Snowden station.

When is the first frost in White Salmon, WA?

The median first fall frost near 98672 is October 11, giving a median frost-free growing season of 149 days.

When should I plant tomatoes in 98672?

Start tomato seeds indoors around Mar 17 – Mar 31 and set transplants outside around May 19 – Jun 2, one to three weeks after the median last frost.

How much rain and snow does 98672 get?

About 36.7 inches of precipitation a year (NOAA 1991–2020 normals, Hood River 0.8 Sw station).

How hot do summers get in White Salmon, WA?

The average high peaks at 79 °F in July, with about 8 days a year at 90 °F or more.

What kind of soil does 98672 have?

The USDA soil survey maps Hood at the center of ZIP 98672: loam, well drained, pH about 6.1 (slightly acidic).

Did spring come early in White Salmon, WA in 2026?

Spring leaf-out near 98672 came on Mar 6 in 2026, 14 days earlier than the 1991–2020 average (Mar 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in White Salmon, WA?

Long-day onions: the longest day near 98672 is 15 h 44 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 98672 change?

Yes. The 2012 USDA map put 98672 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.