Frost dates for ZIP 97493 (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, Honeyman Sp, OR (4 miles away).
- Average last spring frostMar 2850% chance of a 32°F freeze after this date
- Average first fall frostNov 2250% chance of a 32°F freeze by this date
- Growing season (frost-free)237 daysmedian, 32°F threshold
- USDA hardiness zone9a20 to 25°F avg. coldest night
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This week in your yard
As of Oct 17, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
56°F 55°F or warmer
24-hour average · latest 57°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Coos Bay 8 SW (46 mi), Corvallis 10 SSW (49 mi).
4-inch depth
56°F 55°F or warmer
24-hour average · latest 57°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Coos Bay 8 SW (46 mi), Corvallis 10 SSW (49 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 97493 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 56°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
- Lettuce: fall transplant Sep 27–Oct 18
- Spinach: fall sowing Sep 27–Oct 18
- Arugula: fall sowing Sep 27–Oct 25
- Radish: fall sowing Oct 11–25
- Garlic: fall sowing Oct 11–Nov 8
- Shallot: fall sowing Oct 11–Nov 8
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 22: 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) | Feb 23 |
| 50% (the "average" last frost) | Mar 28 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 21 |
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 28 |
| 50% (the "average" first frost) | Nov 22 |
| 90% (late: most years have frozen by now) | Dec 20 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 30 | Oct 31 |
| 32°F (freeze) | Mar 28 | Nov 22 |
| 28°F (hard freeze) | Feb 18 | Dec 15 |
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 97493
Dates count from your average last spring frost (Mar 28) and first fall frost (Nov 22). 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 | Jan 31–Feb 14 | Apr 4–18 (transplant) | Jul 26–Aug 23 (transplant) |
| Pepper (sweet and hot) | Jan 17–31 | Apr 11–25 (transplant) | Aug 2–23 (transplant) |
| Eggplant | Jan 17–31 | Apr 11–25 (transplant) | Aug 2–23 (transplant) |
| Tomatillo | Jan 31–Feb 14 | Apr 4–18 (transplant) | – |
| Lettuce | Jan 31–Feb 14 | Mar 7–28 (transplant) Feb 28–Apr 11 (sow outdoors) | Sep 27–Oct 18 (transplant) Sep 13–Oct 11 (sowing) |
| Spinach | – | Feb 14–Mar 7 (sow outdoors) | Sep 27–Oct 18 (sowing) |
| Kale | Jan 31–Feb 14 | Feb 28–Mar 14 (transplant) Feb 28–Mar 14 (sow outdoors) | Aug 30–Sep 27 (transplant) Aug 16–Sep 13 (sowing) |
| Collards | Jan 31–Feb 14 | Feb 28–Mar 28 (transplant) Feb 28–Mar 28 (sow outdoors) | Aug 30–Sep 27 (transplant) Aug 16–Sep 13 (sowing) |
| Broccoli | Jan 17–31 | Feb 28–Mar 14 (transplant) | Aug 16–Sep 13 (transplant) |
| Cabbage | Jan 17–31 | Feb 28–Mar 14 (transplant) | Aug 16–Sep 13 (transplant) |
| Cauliflower | Jan 17–31 | Mar 14–28 (transplant) | Aug 16–Sep 13 (transplant) |
| Brussels sprouts | Jan 3–17 | Feb 28–Mar 14 (transplant) | Aug 2–23 (transplant) |
| Kohlrabi | Jan 31–Feb 14 | Feb 28–Mar 14 (transplant) Feb 28–Mar 14 (sow outdoors) | Sep 13–27 (sowing) |
| Bok choy / Asian greens | – | Feb 28–Mar 14 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Arugula | – | Feb 28–Mar 28 (sow outdoors) | Sep 27–Oct 25 (sowing) |
| Mustard greens | – | Feb 28–Mar 21 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Swiss chard | Feb 14–28 | Mar 14–Apr 4 (transplant) Mar 14–Apr 11 (sow outdoors) | Sep 13–27 (sowing) |
| Beet | – | Feb 28–Mar 28 (sow outdoors) | Sep 13–27 (sowing) |
| Carrot | – | Mar 7–Apr 4 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Radish | – | Feb 21–Apr 4 (sow outdoors) | Oct 11–25 (sowing) |
| Turnip | – | Feb 28–Mar 21 (sow outdoors) | Sep 13–27 (sowing) |
| Parsnip | – | Mar 7–28 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 31–Feb 28 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Onion (bulbing) | Jan 3–17 | Feb 14–28 (transplant) | – |
| Green onion / scallion | – | Feb 14–Mar 14 (sow outdoors) | Sep 13–27 (sowing) |
| Leek | Jan 3–17 | Feb 28–Mar 14 (transplant) | – |
| Garlic | – | – | Oct 11–Nov 8 (sowing) |
| Shallot | – | Feb 14–28 (transplant) | Oct 11–Nov 8 (sowing) |
| Potato | – | Feb 28–Mar 14 (transplant) | Aug 2–16 (transplant) |
| Sweet potato | – | Apr 18–May 2 (transplant) | – |
| Sweet corn | – | Apr 4–18 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 4–18 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Bean, pole | – | Apr 4–18 (sow outdoors) | – |
| Lima bean | – | Apr 11–25 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 18–May 9 (sow outdoors) | – |
| Cucumber | Feb 28–Mar 7 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Summer squash / zucchini | Feb 28–Mar 7 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | Aug 30–Sep 13 (sowing) |
| Winter squash | Feb 28–Mar 7 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | – |
| Pumpkin | – | Apr 4–18 (sow outdoors) | – |
| Watermelon | Feb 28–Mar 7 | Apr 11–25 (transplant) Apr 11–25 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 28–Mar 7 | Apr 11–25 (transplant) Apr 11–25 (sow outdoors) | – |
| Okra | Feb 14–28 | Apr 11–25 (transplant) Apr 11–25 (sow outdoors) | – |
| Celery | Jan 3–17 | Apr 4–11 (transplant) | – |
| Basil | Feb 14–28 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | – |
| Cilantro | – | Mar 14–Apr 11 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Parsley | Jan 17–31 | Mar 14–28 (transplant) Mar 7–28 (sow outdoors) | – |
| Dill | – | Mar 28–Apr 11 (sow outdoors) | Sep 27–Oct 11 (sowing) |
| Sunflower | – | Mar 28–Apr 11 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 28–Mar 14 (transplant) | – |
| Rhubarb (crowns) | – | Feb 28–Mar 14 (transplant) | – |
| Strawberry (plants) | – | Feb 28–Mar 14 (transplant) | Sep 13–Oct 11 (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: Honeyman Sp, OR (NOAA GHCN-Daily ID USC00353995), elevation 115 ft, 4.5 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Florence #2, OR | 8 mi | Apr 10 | Nov 15 |
| Mapleton, OR | 12 mi | Feb 15 | Dec 9 |
| Winchester Bay Coast Grd, OR | 17 mi | Mar 25 | Nov 24 |
The average last-frost dates of these stations span 57 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97493
When is the last frost in 97493?
The average (50% chance) last spring freeze of 32°F for ZIP 97493 is March 28. For a more cautious planting date, use April 21, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97493?
The average first fall freeze is November 22. In 1 year in 10 it comes by October 28.
What hardiness zone is 97493?
ZIP 97493 is in USDA zone 9a (20 to 25°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 97493 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
97453 Mapleton 97439 Florence 97441 Gardiner 97467 Winchester Bay 97473 97480 97490 97430
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.