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

Planting zone for 97413 — Blue River, OR

ZIP code 97413 (Blue River, Lane County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is May 1 and the first fall frost October 10.

Where ZIP 97413 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 1

First frostOct 10

2012 zone8a

Was 8a 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 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Blue River, 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 Blue River, OR

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 1median — 50% chance of a later frost

Safe for tender plantsMay 19only 10% chance of frost after

First fall frostOctober 10median — 10% chance by Sep 20

Growing season159 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 5 and returns around November 1.

From the NOAA station Mckenzie Rvr Rs, OR — 12 miles away, elevation 1,480 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 97413

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 20 – Apr 3

SpinachSow outdoors · Mar 20 – Apr 10

Broccoli, cabbageStart indoors · Feb 20 – Mar 6

Broccoli, cabbageTransplant · Apr 10 – Apr 24

Onion setsPlant outdoors · Apr 3 – Apr 17

PotatoesPlant outdoors · Apr 10 – Apr 24

LettuceSow outdoors · Apr 3 – Apr 17

Carrots, beetsSow outdoors · Apr 10 – Apr 24

TomatoesStart indoors · Mar 6 – Mar 20

TomatoesTransplant · May 8 – May 22

Peppers, eggplantStart indoors · Feb 20 – Mar 6

Peppers, eggplantTransplant · May 15 – May 29

BeansSow outdoors · May 8 – May 22

Sweet cornSow outdoors · May 8 – May 22

Cucumbers, squashSow outdoors · May 8 – May 22

Fall lettuce, spinachSow outdoors · Aug 15 – Aug 29

GarlicPlant cloves · Sep 26 – Oct 31

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 1) and first fall frost (Oct 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 97413 came on Mar 15 — 35 days earlier than the 1991–2020 average (Apr 19).

average
Apr 192026
Mar 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 7b in Oregon

627 plants native to the lower 48 states, recorded in Oregon, 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 Blue River, OR.

Soil in Blue River, OR

The soil mapped at the center of ZIP 97413 is Separation — 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 classFarmland of statewide importanceUSDA classification

Map unit: Separation medial fine sandy loam, 2 to 15 percent slopes, moist.

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 97413; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Blue River, OR

Summer high86 °Faverage high, July

Winter low31 °Faverage low, January

Hot days30days a year at 90 °F or more

Freezing nights97nights a year at 32 °F or less

Growing degree days2,147base 50 °F — the season’s usable heat

Longest day15 h 30 mindaylight on June 21

Shortest day8 h 53 mindaylight on December 21

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

Precipitation96.8 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: Mckenzie Rvr Rs, OR (12 mi away); precipitation: Mckenzie, OR (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Oregon planting zones →

Questions about 97413

What planting zone is ZIP code 97413?

ZIP code 97413 (Blue River, OR) 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 Blue River, OR?

The median last spring frost (32 °F) near 97413 is May 1; after May 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mckenzie Rvr Rs station.

When is the first frost in Blue River, OR?

The median first fall frost near 97413 is October 10, giving a median frost-free growing season of 159 days.

When should I plant tomatoes in 97413?

Start tomato seeds indoors around Mar 6 – Mar 20 and set transplants outside around May 8 – May 22, one to three weeks after the median last frost.

How much rain and snow does 97413 get?

About 96.8 inches of precipitation a year (NOAA 1991–2020 normals, Mckenzie station).

How hot do summers get in Blue River, OR?

The average high peaks at 86 °F in July, with about 30 days a year at 90 °F or more.

What kind of soil does 97413 have?

The USDA soil survey maps Separation at the center of ZIP 97413: slightly decomposed plant material, well drained, pH about 4.5 (strongly acidic).

Did spring come early in Blue River, OR in 2026?

Spring leaf-out near 97413 came on Mar 15 in 2026, 35 days earlier than the 1991–2020 average (Apr 19), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Blue River, OR?

Long-day onions: the longest day near 97413 is 15 h 30 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 97413 change?

Yes. The 2012 USDA map put 97413 in zone 8a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.