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

Planting zone for 97358 — Lyons, OR

ZIP code 97358 (Lyons, Linn County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 9 and the first fall frost December 3.

Where ZIP 97358 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 9
First frostDec 3
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 Lyons, 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 Lyons, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 9median — 50% chance of a later frost
Safe for tender plantsApril 8only 10% chance of frost after
First fall frostDecember 3median — 10% chance by Nov 8
Growing season270 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 5 and returns around December 26.

From the NOAA station Detroit Dam, OR — 9 miles away, elevation 1,221 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 97358

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 26 – Feb 9
SpinachSow outdoors · Jan 26 – Feb 16
Broccoli, cabbageStart indoors · Dec 29 – Jan 12
Broccoli, cabbageTransplant · Feb 16 – Mar 2
Onion setsPlant outdoors · Feb 9 – Feb 23
PotatoesPlant outdoors · Feb 16 – Mar 2
LettuceSow outdoors · Feb 9 – Feb 23
Carrots, beetsSow outdoors · Feb 16 – Mar 2
TomatoesStart indoors · Jan 12 – Jan 26
TomatoesTransplant · Mar 16 – Mar 30
Peppers, eggplantStart indoors · Dec 29 – Jan 12
Peppers, eggplantTransplant · Mar 23 – Apr 6
BeansSow outdoors · Mar 16 – Mar 30
Sweet cornSow outdoors · Mar 16 – Mar 30
Cucumbers, squashSow outdoors · Mar 16 – Mar 30
Fall lettuce, spinachSow outdoors · Oct 8 – Oct 22
GarlicPlant cloves · Nov 19 – Dec 24
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 9) and first fall frost (Dec 3) 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 97358 came on Feb 8 — 24 days earlier than the 1991–2020 average (Mar 4).

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).

Soil in Lyons, OR

The soil mapped at the center of ZIP 97358 is Horeb — 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: Horeb gravelly silt loam, gravelly substratum, 15 to 35 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 97358; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Lyons, OR

Summer high81 °Faverage high, August
Winter low36 °Faverage low, January
Hot days13days a year at 90 °F or more
Freezing nights46nights a year at 32 °F or less
Growing degree days2,304base 50 °F — the season’s usable heat
Longest day15 h 36 mindaylight on June 21
Shortest day8 h 47 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation93.6 inper year, rain and melted snow
Snowfall10 inper year; 7 days with snow on the ground

Average high and low, by month

30°40°50°60°70°80°90°32 °FJanuary: average high 43 °F, low 36 °F 43°36° JanFebruary: average high 47 °F, low 37 °F 47°37° FebMarch: average high 52 °F, low 38 °F 52°38° MarApril: average high 57 °F, low 41 °F 57°41° AprMay: average high 65 °F, low 46 °F 65°46° MayJune: average high 71 °F, low 51 °F 71°51° JunJuly: average high 80 °F, low 56 °F 80°56° JulAugust: average high 81 °F, low 56 °F 81°56° AugSeptember: average high 74 °F, low 53 °F 74°53° SepOctober: average high 61 °F, low 47 °F 61°47° OctNovember: average high 49 °F, low 40 °F 49°40° NovDecember: average high 43 °F, low 37 °F 43°37° Dec

Precipitation by month inches · ❄ = snowfall

0″2″4″6″8″10″12″14″16″January: 13.06 in precipitation, 5.6 in snowfall 13.1❄6 JanFebruary: 10.00 in precipitation, 2.2 in snowfall 10.0❄2 FebMarch: 10.71 in precipitation, 0.9 in snowfall 10.7❄1 MarApril: 8.63 in precipitation 8.6 AprMay: 6.02 in precipitation 6.0 MayJune: 3.84 in precipitation 3.8 JunJuly: 0.68 in precipitation 0.7 JulAugust: 0.92 in precipitation 0.9 AugSeptember: 2.81 in precipitation 2.8 SepOctober: 7.96 in precipitation 8.0 OctNovember: 13.49 in precipitation, 0.2 in snowfall 13.5 NovDecember: 15.44 in precipitation, 1.3 in snowfall 15.4❄1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Detroit Dam, OR (9 mi away); precipitation: Detroit Dam, OR (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

973468b
Gates, OR · 3 mi
973608b
Mill City, OR · 6 mi
973848b
Mehama, OR · 11 mi
973758b
Scotts Mills, OR · 16 mi
973838b
Stayton, OR · 16 mi
973858b
Sublimity, OR · 16 mi
973818b
Silverton, OR · 18 mi
970388b
Molalla, OR · 21 mi

Oregon planting zones →

Questions about 97358

What planting zone is ZIP code 97358?

ZIP code 97358 (Lyons, 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 Lyons, OR?

The median last spring frost (32 °F) near 97358 is March 9; after April 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Detroit Dam station.

When is the first frost in Lyons, OR?

The median first fall frost near 97358 is December 3, giving a median frost-free growing season of 270 days.

When should I plant tomatoes in 97358?

Start tomato seeds indoors around Jan 12 – Jan 26 and set transplants outside around Mar 16 – Mar 30, one to three weeks after the median last frost.

How much rain and snow does 97358 get?

About 93.6 inches of precipitation a year and 10 inches of snowfall (NOAA 1991–2020 normals, Detroit Dam station).

How hot do summers get in Lyons, OR?

The average high peaks at 81 °F in August, with about 13 days a year at 90 °F or more.

What kind of soil does 97358 have?

The USDA soil survey maps Horeb at the center of ZIP 97358: slightly decomposed plant material, well drained, pH about 4.5 (strongly acidic).

Did spring come early in Lyons, OR in 2026?

Spring leaf-out near 97358 came on Feb 8 in 2026, 24 days earlier than the 1991–2020 average (Mar 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Lyons, OR?

Long-day onions: the longest day near 97358 is 15 h 36 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).