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

Planting zone for 97326 — Blodgett, OR

ZIP code 97326 (Blodgett, Benton County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is May 15 and the first fall frost October 8.

Where ZIP 97326 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 frostMay 15
First frostOct 8
2012 zone8b

Same zone as on the 2012 map. 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 Blodgett, 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 Blodgett, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 15median — 50% chance of a later frost
Safe for tender plantsJune 2only 10% chance of frost after
First fall frostOctober 8median — 10% chance by Sep 24
Growing season145 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 25 and returns around October 28.

From the NOAA station Corvallis Water Bureau, OR — 14 miles away, elevation 591 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 97326

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 3 – Apr 17
SpinachSow outdoors · Apr 3 – Apr 24
Broccoli, cabbageStart indoors · Mar 6 – Mar 20
Broccoli, cabbageTransplant · Apr 24 – May 8
Onion setsPlant outdoors · Apr 17 – May 1
PotatoesPlant outdoors · Apr 24 – May 8
LettuceSow outdoors · Apr 17 – May 1
Carrots, beetsSow outdoors · Apr 24 – May 8
TomatoesStart indoors · Mar 20 – Apr 3
TomatoesTransplant · May 22 – Jun 5
Peppers, eggplantStart indoors · Mar 6 – Mar 20
Peppers, eggplantTransplant · May 29 – Jun 12
BeansSow outdoors · May 22 – Jun 5
Sweet cornSow outdoors · May 22 – Jun 5
Cucumbers, squashSow outdoors · May 22 – Jun 5
Fall lettuce, spinachSow outdoors · Aug 13 – Aug 27
GarlicPlant cloves · Sep 24 – Oct 29
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 15) and first fall frost (Oct 8) 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 97326 came on Feb 17 — about the same time as the 1991–2020 average (Feb 18).

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.

Trees 43

Alaska cedar75 ft · blooms mid spring · low shade tolerance · to −22 °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 °FBrewer spruce100 ft · blooms early summer · low shade tolerance · to −13 °F

Shrubs 132

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °Falderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Falpine laurel1 ft · blooms late spring · low shade tolerance · to −28 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °Fbeaked hazelnut15 ft · blooms early spring · low shade tolerance · to −47 °Fbig sagebrush4 ft · blooms mid summer · high shade tolerance · to −43 °F

Wildflowers & perennials 305

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 166

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 2

riverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °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 Blodgett, OR.

Soil in Blodgett, OR

The soil mapped at the center of ZIP 97326 is Preacher — 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: Preacher-Bohannon-Slickrock complex, 35 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 97326; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Blodgett, OR

Summer high83 °Faverage high, August
Winter low28 °Faverage low, January
Hot days14days a year at 90 °F or more
Freezing nights83nights a year at 32 °F or less
Growing degree days1,709base 50 °F — the season’s usable heat
Longest day15 h 34 mindaylight on June 21
Shortest day8 h 48 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation69.1 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°32 °FJanuary: average high 47 °F, low 28 °F 47°28° JanFebruary: average high 51 °F, low 28 °F 51°28° FebMarch: average high 56 °F, low 31 °F 56°31° MarApril: average high 61 °F, low 33 °F 61°33° AprMay: average high 69 °F, low 39 °F 69°39° MayJune: average high 74 °F, low 43 °F 74°43° JunJuly: average high 82 °F, low 46 °F 82°46° JulAugust: average high 83 °F, low 46 °F 83°46° AugSeptember: average high 77 °F, low 42 °F 77°42° SepOctober: average high 65 °F, low 36 °F 65°36° OctNovember: average high 53 °F, low 31 °F 53°31° NovDecember: average high 46 °F, low 28 °F 46°28° Dec

Precipitation by month inches

0″2″4″6″8″10″12″January: 10.94 in precipitation 10.9 JanFebruary: 7.78 in precipitation 7.8 FebMarch: 8.17 in precipitation 8.2 MarApril: 5.90 in precipitation 5.9 AprMay: 3.39 in precipitation 3.4 MayJune: 1.95 in precipitation 1.9 JunJuly: 0.47 in precipitation 0.5 JulAugust: 0.61 in precipitation 0.6 AugSeptember: 2.16 in precipitation 2.2 SepOctober: 5.61 in precipitation 5.6 OctNovember: 10.32 in precipitation 10.3 NovDecember: 11.84 in precipitation 11.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Corvallis Water Bureau, OR (14 mi away); precipitation: Blodgett 1 N, OR (4 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.

973439a
Eddyville, OR · 6 mi
973708b
Philomath, OR · 11 mi
973579a
Logsden, OR · 11 mi
973919a
Toledo, OR · 11 mi
973809a
Siletz, OR · 17 mi
973769a
Seal Rock, OR · 18 mi
973448b
Falls City, OR · 19 mi
973618b
Monmouth, OR · 19 mi

Oregon planting zones →

Questions about 97326

What planting zone is ZIP code 97326?

ZIP code 97326 (Blodgett, 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 Blodgett, OR?

The median last spring frost (32 °F) near 97326 is May 15; after June 2 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Corvallis Water Bureau station.

When is the first frost in Blodgett, OR?

The median first fall frost near 97326 is October 8, giving a median frost-free growing season of 145 days.

When should I plant tomatoes in 97326?

Start tomato seeds indoors around Mar 20 – Apr 3 and set transplants outside around May 22 – Jun 5, one to three weeks after the median last frost.

How much rain and snow does 97326 get?

About 69.1 inches of precipitation a year (NOAA 1991–2020 normals, Blodgett 1 N station).

How hot do summers get in Blodgett, OR?

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

What kind of soil does 97326 have?

The USDA soil survey maps Preacher at the center of ZIP 97326: slightly decomposed plant material, well drained, pH about 4.5 (strongly acidic).

Did spring come early in Blodgett, OR in 2026?

Spring leaf-out near 97326 came on Feb 17 in 2026, about the same as the 1991–2020 average (Feb 18), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Blodgett, OR?

Long-day onions: the longest day near 97326 is 15 h 34 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).