Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 97478 (Lane County, OR)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Leaburg 1 SW, OR (8 miles away).
- Average last spring frostApr 350% chance of a 32°F freeze after this date
- Average first fall frostNov 1150% chance of a 32°F freeze by this date
- Growing season (frost-free)220 daysmedian, 32°F threshold
- USDA hardiness zone8b15 to 20°F avg. coldest night
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This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
58°F 55°F or warmer
24-hour average · latest 58°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Corvallis 10 SSW (33 mi).
4-inch depth
58°F 55°F or warmer
24-hour average · latest 58°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Corvallis 10 SSW (33 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 97478 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 58°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.
Fertilizer window
Lawn region: Pacific Northwest (west of the Cascades). Timing only; always follow the product label.
- Perennial ryegrass (cool-season): Early fall: September; Late fall: October–November; Overseeded Bermuda: Light feeding once the winter rye is established, if needed. Avoid: Summer feeding.
Plant now
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 11: skip heavy pruning in the 6–8 weeks before it, because new growth may not harden off in time.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Mar 5 |
| 50% (the "average" last frost) | Apr 3 |
| 10% (cautious: only 1 year in 10 freezes later) | May 2 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Oct 21 |
| 50% (the "average" first frost) | Nov 11 |
| 90% (late: most years have frozen by now) | Dec 5 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 3 | Oct 23 |
| 32°F (freeze) | Apr 3 | Nov 11 |
| 28°F (hard freeze) | Feb 22 | Dec 4 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 97478
Dates count from your average last spring frost (Apr 3) and first fall frost (Nov 11). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Feb 6–20 | Apr 10–24 (transplant) | Jul 15–Aug 12 (transplant) |
| Pepper (sweet and hot) | Jan 23–Feb 6 | Apr 17–May 1 (transplant) | Jul 22–Aug 12 (transplant) |
| Eggplant | Jan 23–Feb 6 | Apr 17–May 1 (transplant) | Jul 22–Aug 12 (transplant) |
| Tomatillo | Feb 6–20 | Apr 10–24 (transplant) | – |
| Lettuce | Feb 6–20 | Mar 13–Apr 3 (transplant) Mar 6–Apr 17 (sow outdoors) | Sep 16–Oct 7 (transplant) Sep 2–30 (sowing) |
| Spinach | – | Feb 20–Mar 13 (sow outdoors) | Sep 16–Oct 7 (sowing) |
| Kale | Feb 6–20 | Mar 6–20 (transplant) Mar 6–20 (sow outdoors) | Aug 19–Sep 16 (transplant) Aug 5–Sep 2 (sowing) |
| Collards | Feb 6–20 | Mar 6–Apr 3 (transplant) Mar 6–Apr 3 (sow outdoors) | Aug 19–Sep 16 (transplant) Aug 5–Sep 2 (sowing) |
| Broccoli | Jan 23–Feb 6 | Mar 6–20 (transplant) | Aug 5–Sep 2 (transplant) |
| Cabbage | Jan 23–Feb 6 | Mar 6–20 (transplant) | Aug 5–Sep 2 (transplant) |
| Cauliflower | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) | Aug 5–Sep 2 (transplant) |
| Brussels sprouts | Jan 9–23 | Mar 6–20 (transplant) | Jul 22–Aug 12 (transplant) |
| Kohlrabi | Feb 6–20 | Mar 6–20 (transplant) Mar 6–20 (sow outdoors) | Sep 2–16 (sowing) |
| Bok choy / Asian greens | – | Mar 6–20 (sow outdoors) | Sep 16–30 (sowing) |
| Arugula | – | Mar 6–Apr 3 (sow outdoors) | Sep 16–Oct 14 (sowing) |
| Mustard greens | – | Mar 6–27 (sow outdoors) | Sep 16–30 (sowing) |
| Swiss chard | Feb 20–Mar 6 | Mar 20–Apr 10 (transplant) Mar 20–Apr 17 (sow outdoors) | Sep 2–16 (sowing) |
| Beet | – | Mar 6–Apr 3 (sow outdoors) | Sep 2–16 (sowing) |
| Carrot | – | Mar 13–Apr 10 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Radish | – | Feb 27–Apr 10 (sow outdoors) | Sep 30–Oct 14 (sowing) |
| Turnip | – | Mar 6–27 (sow outdoors) | Sep 2–16 (sowing) |
| Parsnip | – | Mar 13–Apr 3 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 6–Mar 6 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Onion (bulbing) | Jan 9–23 | Feb 20–Mar 6 (transplant) | – |
| Green onion / scallion | – | Feb 20–Mar 20 (sow outdoors) | Sep 2–16 (sowing) |
| Leek | Jan 9–23 | Mar 6–20 (transplant) | – |
| Garlic | – | – | Sep 30–Oct 28 (sowing) |
| Shallot | – | Feb 20–Mar 6 (transplant) | Sep 30–Oct 28 (sowing) |
| Potato | – | Mar 6–20 (transplant) | Jul 22–Aug 5 (transplant) |
| Sweet potato | – | Apr 24–May 8 (transplant) | – |
| Sweet corn | – | Apr 10–24 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 10–24 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Bean, pole | – | Apr 10–24 (sow outdoors) | – |
| Lima bean | – | Apr 17–May 1 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 24–May 15 (sow outdoors) | – |
| Cucumber | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Summer squash / zucchini | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | Aug 19–Sep 2 (sowing) |
| Winter squash | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Pumpkin | – | Apr 10–24 (sow outdoors) | – |
| Watermelon | Mar 6–13 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 6–13 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Okra | Feb 20–Mar 6 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Celery | Jan 9–23 | Apr 10–17 (transplant) | – |
| Basil | Feb 20–Mar 6 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Cilantro | – | Mar 20–Apr 17 (sow outdoors) | Sep 16–30 (sowing) |
| Parsley | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) Mar 13–Apr 3 (sow outdoors) | – |
| Dill | – | Apr 3–17 (sow outdoors) | Sep 16–30 (sowing) |
| Sunflower | – | Apr 3–17 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 6–20 (transplant) | – |
| Rhubarb (crowns) | – | Mar 6–20 (transplant) | – |
| Strawberry (plants) | – | Mar 6–20 (transplant) | Sep 2–30 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Where these numbers come from
Station: Leaburg 1 SW, OR (NOAA GHCN-Daily ID USC00354811), elevation 675 ft, 7.6 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Lookout Pt Dam, OR | 13 mi | Mar 7 | Nov 27 |
| Eugene Mahlon Sweet AP, OR | 19 mi | Apr 11 | Oct 23 |
| Dorena, OR | 22 mi | Apr 16 | Oct 28 |
The average last-frost dates of these stations span 40 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97478
When is the last frost in 97478?
The average (50% chance) last spring freeze of 32°F for ZIP 97478 is April 3. For a more cautious planting date, use May 2, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97478?
The average first fall freeze is November 11. In 1 year in 10 it comes by October 21.
What hardiness zone is 97478?
ZIP 97478 is in USDA zone 8b (15 to 20°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 97478 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
97477 Springfield 97454 Marcola 97455 Jasper 97403 Eugene 97408 Eugene 97489 97401 Eugene 97438
Other ZIP codes in Lane County
97401 97402 97403 97404 97405 97408 97412 97413 97419 97424 97426 97430 97431 97434 97437 97438 97439 97448 97451 97452 97453 97454 97455 97461 All Lane County frost dates · Oregon frost dates
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Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.