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

Planting zone for 97023 — Estacada, OR

ZIP code 97023 (Estacada, Clackamas County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is March 27 and the first fall frost November 14.

Where ZIP 97023 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.

Zone8a10 to 15 °F

Coldest night−12.2 to −9.4 °C

Last frostMar 27

First frostNov 14

2012 zone8b

Was 8b on the 2012 map — half a zone colder now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Estacada, 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 Estacada, OR

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 27median — 50% chance of a later frost

Safe for tender plantsApril 23only 10% chance of frost after

First fall frostNovember 14median — 10% chance by Oct 23

Growing season230 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 22 and returns around December 3.

From the NOAA station Estacada 2 Se, OR — 7 miles away, elevation 515 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 97023

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 13 – Feb 27

SpinachSow outdoors · Feb 13 – Mar 6

Broccoli, cabbageStart indoors · Jan 16 – Jan 30

Broccoli, cabbageTransplant · Mar 6 – Mar 20

Onion setsPlant outdoors · Feb 27 – Mar 13

PotatoesPlant outdoors · Mar 6 – Mar 20

LettuceSow outdoors · Feb 27 – Mar 13

Carrots, beetsSow outdoors · Mar 6 – Mar 20

TomatoesStart indoors · Jan 30 – Feb 13

TomatoesTransplant · Apr 3 – Apr 17

Peppers, eggplantStart indoors · Jan 16 – Jan 30

Peppers, eggplantTransplant · Apr 10 – Apr 24

BeansSow outdoors · Apr 3 – Apr 17

Sweet cornSow outdoors · Apr 3 – Apr 17

Cucumbers, squashSow outdoors · Apr 3 – Apr 17

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 27) 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 97023 came on Feb 14 — 19 days earlier than the 1991–2020 average (Mar 5).

average
Mar 52026
Feb 14

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 8a in Oregon

654 plants native to the lower 48 states, recorded in Oregon, and rated by the USDA to survive 10 °F or colder — the bottom of zone 8a. 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 Estacada, OR.

Soil in Estacada, OR

The center of ZIP 97023 is mapped as No Digital Data Available: 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 97023; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Estacada, OR

Summer high83 °Faverage high, August

Winter low35 °Faverage low, January

Hot days14days a year at 90 °F or more

Freezing nights40nights a year at 32 °F or less

Growing degree days2,472base 50 °F — the season’s usable heat

Longest day15 h 39 mindaylight on June 21

Shortest day8 h 44 mindaylight on December 21

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

Precipitation59.7 inper year, rain and melted snow

Snowfall2 inper year; 2 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Estacada 2 Se, OR (7 mi away); precipitation: Eagle Creek 9 Se, OR (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Eagle Creek, OR · 11 mi

970048b

Beavercreek, OR · 13 mi

970678a

Welches, OR · 13 mi

970118a

Brightwood, OR · 15 mi

Oregon planting zones →

Questions about 97023

What planting zone is ZIP code 97023?

ZIP code 97023 (Estacada, OR) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in Estacada, OR?

The median last spring frost (32 °F) near 97023 is March 27; after April 23 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Estacada 2 Se station.

When is the first frost in Estacada, OR?

The median first fall frost near 97023 is November 14, giving a median frost-free growing season of 230 days.

When should I plant tomatoes in 97023?

Start tomato seeds indoors around Jan 30 – Feb 13 and set transplants outside around Apr 3 – Apr 17, one to three weeks after the median last frost.

How much rain and snow does 97023 get?

About 59.7 inches of precipitation a year and 2 inches of snowfall (NOAA 1991–2020 normals, Eagle Creek 9 Se station).

How hot do summers get in Estacada, OR?

The average high peaks at 83 °F in August, with about 14 days a year at 90 °F or more.

Did spring come early in Estacada, OR in 2026?

Spring leaf-out near 97023 came on Feb 14 in 2026, 19 days earlier than the 1991–2020 average (Mar 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Estacada, OR?

Long-day onions: the longest day near 97023 is 15 h 39 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 97023 change?

Yes. The 2012 USDA map put 97023 in zone 8b; the 2023 map puts it in zone 8a. The newer map uses 1991–2020 data and more weather stations.