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

Planting zone for 97410 — Azalea, OR

ZIP code 97410 (Azalea, Douglas County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 31 and the first fall frost November 6.

Where ZIP 97410 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 frostMar 31

First frostNov 6

2012 zone8a

Was 8a 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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Azalea, 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 Azalea, OR

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 31median — 50% chance of a later frost

Safe for tender plantsApril 27only 10% chance of frost after

First fall frostNovember 6median — 10% chance by Oct 11

Growing season221 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 20 and returns around December 10.

From the NOAA station Riddle, OR — 16 miles away, elevation 679 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 97410

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 17 – Mar 3

SpinachSow outdoors · Feb 17 – Mar 10

Broccoli, cabbageStart indoors · Jan 20 – Feb 3

Broccoli, cabbageTransplant · Mar 10 – Mar 24

Onion setsPlant outdoors · Mar 3 – Mar 17

PotatoesPlant outdoors · Mar 10 – Mar 24

LettuceSow outdoors · Mar 3 – Mar 17

Carrots, beetsSow outdoors · Mar 10 – Mar 24

TomatoesStart indoors · Feb 3 – Feb 17

TomatoesTransplant · Apr 7 – Apr 21

Peppers, eggplantStart indoors · Jan 20 – Feb 3

Peppers, eggplantTransplant · Apr 14 – Apr 28

BeansSow outdoors · Apr 7 – Apr 21

Sweet cornSow outdoors · Apr 7 – Apr 21

Cucumbers, squashSow outdoors · Apr 7 – Apr 21

Fall lettuce, spinachSow outdoors · Sep 11 – Sep 25

GarlicPlant cloves · Oct 23 – Nov 27

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 6) 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 97410 came on Feb 15 — 20 days earlier than the 1991–2020 average (Mar 7).

average
Mar 72026
Feb 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 8b in Oregon

661 plants native to the lower 48 states, recorded in Oregon, 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 Azalea, OR.

Soil in Azalea, OR

The soil mapped at the center of ZIP 97410 is Sharpshooter — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer

pH4.5strongly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter75%high

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Sharpshooter loam, 30 to 60 percent south 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 97410; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Azalea, OR

Summer high89 °Faverage high, August

Winter low37 °Faverage low, January

Hot days35days a year at 90 °F or more

Freezing nights33nights a year at 32 °F or less

Growing degree days3,153base 50 °F — the season’s usable heat

Longest day15 h 20 mindaylight on June 21

Shortest day9 h 01 mindaylight on December 21

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

Precipitation61 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: Riddle, OR (16 mi away); precipitation: King Mountain, OR (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

974178b

Canyonville, OR · 11 mi

974298b

Days Creek, OR · 12 mi

White City, OR · 17 mi

975378b

Rogue River, OR · 17 mi

974698b

Riddle, OR · 17 mi

974978b

Wolf Creek, OR · 18 mi

Oregon planting zones →

Questions about 97410

What planting zone is ZIP code 97410?

ZIP code 97410 (Azalea, OR) 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 Azalea, OR?

The median last spring frost (32 °F) near 97410 is March 31; after April 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Riddle station.

When is the first frost in Azalea, OR?

The median first fall frost near 97410 is November 6, giving a median frost-free growing season of 221 days.

When should I plant tomatoes in 97410?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 97410 get?

About 61 inches of precipitation a year (NOAA 1991–2020 normals, King Mountain station).

How hot do summers get in Azalea, OR?

The average high peaks at 89 °F in August, with about 35 days a year at 90 °F or more.

What kind of soil does 97410 have?

The USDA soil survey maps Sharpshooter at the center of ZIP 97410: slightly decomposed plant material, well drained, pH about 4.5 (strongly acidic).

Did spring come early in Azalea, OR in 2026?

Spring leaf-out near 97410 came on Feb 15 in 2026, 20 days earlier than the 1991–2020 average (Mar 7), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Azalea, OR?

Long-day onions: the longest day near 97410 is 15 h 20 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 97410 change?

Yes. The 2012 USDA map put 97410 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.