Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 97352 (Jefferson, 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, Stayton, OR (11 miles away).
- Average last spring frostMar 2950% chance of a 32°F freeze after this date
- Average first fall frostNov 650% chance of a 32°F freeze by this date
- Growing season (frost-free)222 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 (27 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 (27 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 97352 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 6: 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) | Mar 29 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 18 |
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 20 |
| 50% (the "average" first frost) | Nov 6 |
| 90% (late: most years have frozen by now) | Nov 26 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 26 | Oct 22 |
| 32°F (freeze) | Mar 29 | Nov 6 |
| 28°F (hard freeze) | Mar 1 | Nov 22 |
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 97352
Dates count from your average last spring frost (Mar 29) and first fall frost (Nov 6). 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 1–15 | Apr 5–19 (transplant) | Jul 10–Aug 7 (transplant) |
| Pepper (sweet and hot) | Jan 18–Feb 1 | Apr 12–26 (transplant) | Jul 17–Aug 7 (transplant) |
| Eggplant | Jan 18–Feb 1 | Apr 12–26 (transplant) | Jul 17–Aug 7 (transplant) |
| Tomatillo | Feb 1–15 | Apr 5–19 (transplant) | – |
| Lettuce | Feb 1–15 | Mar 8–29 (transplant) Mar 1–Apr 12 (sow outdoors) | Sep 11–Oct 2 (transplant) Aug 28–Sep 25 (sowing) |
| Spinach | – | Feb 15–Mar 8 (sow outdoors) | Sep 11–Oct 2 (sowing) |
| Kale | Feb 1–15 | Mar 1–15 (transplant) Mar 1–15 (sow outdoors) | Aug 14–Sep 11 (transplant) Jul 31–Aug 28 (sowing) |
| Collards | Feb 1–15 | Mar 1–29 (transplant) Mar 1–29 (sow outdoors) | Aug 14–Sep 11 (transplant) Jul 31–Aug 28 (sowing) |
| Broccoli | Jan 18–Feb 1 | Mar 1–15 (transplant) | Jul 31–Aug 28 (transplant) |
| Cabbage | Jan 18–Feb 1 | Mar 1–15 (transplant) | Jul 31–Aug 28 (transplant) |
| Cauliflower | Jan 18–Feb 1 | Mar 15–29 (transplant) | Jul 31–Aug 28 (transplant) |
| Brussels sprouts | Jan 4–18 | Mar 1–15 (transplant) | Jul 17–Aug 7 (transplant) |
| Kohlrabi | Feb 1–15 | Mar 1–15 (transplant) Mar 1–15 (sow outdoors) | Aug 28–Sep 11 (sowing) |
| Bok choy / Asian greens | – | Mar 1–15 (sow outdoors) | Sep 11–25 (sowing) |
| Arugula | – | Mar 1–29 (sow outdoors) | Sep 11–Oct 9 (sowing) |
| Mustard greens | – | Mar 1–22 (sow outdoors) | Sep 11–25 (sowing) |
| Swiss chard | Feb 15–Mar 1 | Mar 15–Apr 5 (transplant) Mar 15–Apr 12 (sow outdoors) | Aug 28–Sep 11 (sowing) |
| Beet | – | Mar 1–29 (sow outdoors) | Aug 28–Sep 11 (sowing) |
| Carrot | – | Mar 8–Apr 5 (sow outdoors) | Aug 14–28 (sowing) |
| Radish | – | Feb 22–Apr 5 (sow outdoors) | Sep 25–Oct 9 (sowing) |
| Turnip | – | Mar 1–22 (sow outdoors) | Aug 28–Sep 11 (sowing) |
| Parsnip | – | Mar 8–29 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 1–Mar 1 (sow outdoors) | Aug 14–28 (sowing) |
| Onion (bulbing) | Jan 4–18 | Feb 15–Mar 1 (transplant) | – |
| Green onion / scallion | – | Feb 15–Mar 15 (sow outdoors) | Aug 28–Sep 11 (sowing) |
| Leek | Jan 4–18 | Mar 1–15 (transplant) | – |
| Garlic | – | – | Sep 25–Oct 23 (sowing) |
| Shallot | – | Feb 15–Mar 1 (transplant) | Sep 25–Oct 23 (sowing) |
| Potato | – | Mar 1–15 (transplant) | Jul 17–31 (transplant) |
| Sweet potato | – | Apr 19–May 3 (transplant) | – |
| Sweet corn | – | Apr 5–19 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 5–19 (sow outdoors) | Aug 14–28 (sowing) |
| Bean, pole | – | Apr 5–19 (sow outdoors) | – |
| Lima bean | – | Apr 12–26 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 19–May 10 (sow outdoors) | – |
| Cucumber | Mar 1–8 | Apr 5–19 (transplant) Apr 5–19 (sow outdoors) | Aug 14–28 (sowing) |
| Summer squash / zucchini | Mar 1–8 | Apr 5–19 (transplant) Apr 5–19 (sow outdoors) | Aug 14–28 (sowing) |
| Winter squash | Mar 1–8 | Apr 5–19 (transplant) Apr 5–19 (sow outdoors) | – |
| Pumpkin | – | Apr 5–19 (sow outdoors) | – |
| Watermelon | Mar 1–8 | Apr 12–26 (transplant) Apr 12–26 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 1–8 | Apr 12–26 (transplant) Apr 12–26 (sow outdoors) | – |
| Okra | Feb 15–Mar 1 | Apr 12–26 (transplant) Apr 12–26 (sow outdoors) | – |
| Celery | Jan 4–18 | Apr 5–12 (transplant) | – |
| Basil | Feb 15–Mar 1 | Apr 5–19 (transplant) Apr 5–19 (sow outdoors) | – |
| Cilantro | – | Mar 15–Apr 12 (sow outdoors) | Sep 11–25 (sowing) |
| Parsley | Jan 18–Feb 1 | Mar 15–29 (transplant) Mar 8–29 (sow outdoors) | – |
| Dill | – | Mar 29–Apr 12 (sow outdoors) | Sep 11–25 (sowing) |
| Sunflower | – | Mar 29–Apr 12 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 1–15 (transplant) | – |
| Rhubarb (crowns) | – | Mar 1–15 (transplant) | – |
| Strawberry (plants) | – | Mar 1–15 (transplant) | Aug 28–Sep 25 (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: Stayton, OR (NOAA GHCN-Daily ID USC00358095), elevation 425 ft, 10.8 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Salem Mcnary Fld, OR | 11 mi | Apr 3 | Nov 1 |
| Corvallis State Univ, OR | 11 mi | Apr 17 | Oct 28 |
| Lebanon, OR | 16 mi | Mar 14 | Nov 18 |
The average last-frost dates of these stations span 34 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97352
When is the last frost in 97352?
The average (50% chance) last spring freeze of 32°F for ZIP 97352 is March 29. For a more cautious planting date, use April 18, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97352?
The average first fall freeze is November 6. In 1 year in 10 it comes by October 20.
What hardiness zone is 97352?
ZIP 97352 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 97352 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
97392 Turner 97351 Independence 97306 Salem 97322 Albany 97321 Albany 97310 Salem 97325 Aumsville 97335 Crabtree
Other ZIP codes in Marion County
97002 97020 97026 97032 97071 97137 97301 97302 97303 97305 97306 97310 97317 97325 97342 97346 97358 97362 97373 97375 97381 97383 97384 97385 All Marion 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.