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

Planting zone for 98822 — Entiat, WA

ZIP code 98822 (Entiat, Chelan County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is May 22 and the first fall frost September 22.

Where ZIP 98822 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 22
First frostSep 22
2012 zone6b

Was 6b 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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Entiat, 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 Entiat, WA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 22median — 50% chance of a later frost
Safe for tender plantsJune 13only 10% chance of frost after
First fall frostSeptember 22median — 10% chance by Sep 7
Growing season121 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 3 and returns around October 4.

From the NOAA station Plain, WA — 14 miles away, elevation 1,936 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 98822

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 10 – Apr 24
SpinachSow outdoors · Apr 10 – May 1
Broccoli, cabbageStart indoors · Mar 13 – Mar 27
Broccoli, cabbageTransplant · May 1 – May 15
Onion setsPlant outdoors · Apr 24 – May 8
PotatoesPlant outdoors · May 1 – May 15
LettuceSow outdoors · Apr 24 – May 8
Carrots, beetsSow outdoors · May 1 – May 15
TomatoesStart indoors · Mar 27 – Apr 10
TomatoesTransplant · May 29 – Jun 12
Peppers, eggplantStart indoors · Mar 13 – Mar 27
Peppers, eggplantTransplant · Jun 5 – Jun 19
BeansSow outdoors · May 29 – Jun 12
Sweet cornSow outdoors · May 29 – Jun 12
Cucumbers, squashSow outdoors · May 29 – Jun 12
Fall lettuce, spinachSow outdoors · Jul 28 – Aug 11
GarlicPlant cloves · Sep 8 – Oct 13
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 22) and first fall frost (Sep 22) 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 98822 came on Apr 24 — 21 days earlier than the 1991–2020 average (May 15).

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 Washington

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

Trees 31

Alaska cedar75 ft · blooms mid spring · low shade tolerance · to −22 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °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 °F

Shrubs 105

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falpine laurel1 ft · blooms late spring · low shade tolerance · to −28 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FBarclay's willow15 ft · high shade tolerance · to −43 °F

Wildflowers & perennials 282

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 157

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 3

riverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Ftrumpet creeper2 ft · blooms summer · high shade tolerance · to −13 °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 Entiat, WA.

Soil in Entiat, WA

The soil mapped at the center of ZIP 98822 is Wedge — paragravelly ashy sandy loam, well drained.

TextureParagravelly ashy sandy loamdrains and warms fast; dries out and needs more feeding
pH5.5moderately acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.25%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Wedge cindery fine sandy loam, 30 to 60 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 98822; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Entiat, WA

Summer high82 °Faverage high, July
Winter low21 °Faverage low, January
Hot days16days a year at 90 °F or more
Freezing nights177nights a year at 32 °F or less
Growing degree days1,691base 50 °F — the season’s usable heat
Longest day16 h 03 mindaylight on June 21
Shortest day8 h 22 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation34.6 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 34 °F, low 21 °F 34°21° JanFebruary: average high 40 °F, low 23 °F 40°23° FebMarch: average high 48 °F, low 27 °F 48°27° MarApril: average high 57 °F, low 32 °F 57°32° AprMay: average high 67 °F, low 39 °F 67°39° MayJune: average high 73 °F, low 45 °F 73°45° JunJuly: average high 82 °F, low 50 °F 82°50° JulAugust: average high 82 °F, low 49 °F 82°49° AugSeptember: average high 74 °F, low 42 °F 74°42° SepOctober: average high 58 °F, low 33 °F 58°33° OctNovember: average high 42 °F, low 27 °F 42°27° NovDecember: average high 32 °F, low 21 °F 32°21° Dec

Precipitation by month inches

0″2″4″6″January: 5.79 in precipitation 5.8 JanFebruary: 3.77 in precipitation 3.8 FebMarch: 3.45 in precipitation 3.5 MarApril: 1.59 in precipitation 1.6 AprMay: 1.42 in precipitation 1.4 MayJune: 0.96 in precipitation 1.0 JunJuly: 0.50 in precipitation 0.5 JulAugust: 0.52 in precipitation 0.5 AugSeptember: 1.02 in precipitation 1.0 SepOctober: 3.37 in precipitation 3.4 OctNovember: 5.85 in precipitation 5.8 NovDecember: 6.39 in precipitation 6.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Plain, WA (14 mi away); precipitation: Pope Ridge, WA (2 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.

988167a
Chelan, WA · 14 mi
988267a
Leavenworth, WA · 17 mi
988117a
Ardenvoir, WA · 20 mi
988146b
Carlton, WA · 21 mi
988317a
Manson, WA · 23 mi
988526b
Stehekin, WA · 27 mi
988347a
Methow, WA · 28 mi
982418a
Darrington, WA · 28 mi

Washington planting zones →

Questions about 98822

What planting zone is ZIP code 98822?

ZIP code 98822 (Entiat, WA) 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 Entiat, WA?

The median last spring frost (32 °F) near 98822 is May 22; after June 13 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Plain station.

When is the first frost in Entiat, WA?

The median first fall frost near 98822 is September 22, giving a median frost-free growing season of 121 days.

When should I plant tomatoes in 98822?

Start tomato seeds indoors around Mar 27 – Apr 10 and set transplants outside around May 29 – Jun 12, one to three weeks after the median last frost.

How much rain and snow does 98822 get?

About 34.6 inches of precipitation a year (NOAA 1991–2020 normals, Pope Ridge station).

How hot do summers get in Entiat, WA?

The average high peaks at 82 °F in July, with about 16 days a year at 90 °F or more.

What kind of soil does 98822 have?

The USDA soil survey maps Wedge at the center of ZIP 98822: paragravelly ashy sandy loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Entiat, WA in 2026?

Spring leaf-out near 98822 came on Apr 24 in 2026, 21 days earlier than the 1991–2020 average (May 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Entiat, WA?

Long-day onions: the longest day near 98822 is 16 h 03 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 98822 change?

Yes. The 2012 USDA map put 98822 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.