Frost dates for ZIP 97101 (Amity, 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, Mcminnville Muni AP, OR (9 miles away).
- Average last spring frostApr 1550% chance of a 32°F freeze after this date
- Average first fall frostOct 2650% chance of a 32°F freeze by this date
- Growing season (frost-free)195 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 17, 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 60°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Corvallis 10 SSW (47 mi).
4-inch depth
58°F 55°F or warmer
24-hour average · latest 60°F, as of Oct 17, 9:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Corvallis 10 SSW (47 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 97101 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
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Oct 26: 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 18 |
| 50% (the "average" last frost) | Apr 15 |
| 10% (cautious: only 1 year in 10 freezes later) | May 6 |
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 5 |
| 50% (the "average" first frost) | Oct 26 |
| 90% (late: most years have frozen by now) | Nov 19 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 8 | Oct 7 |
| 32°F (freeze) | Apr 15 | Oct 26 |
| 28°F (hard freeze) | Mar 3 | Nov 16 |
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 97101
Dates count from your average last spring frost (Apr 15) and first fall frost (Oct 26). 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 18–Mar 4 | Apr 22–May 6 (transplant) | – |
| Pepper (sweet and hot) | Feb 4–18 | Apr 29–May 13 (transplant) | – |
| Eggplant | Feb 4–18 | Apr 29–May 13 (transplant) | – |
| Tomatillo | Feb 18–Mar 4 | Apr 22–May 6 (transplant) | – |
| Lettuce | Feb 18–Mar 4 | Mar 25–Apr 15 (transplant) Mar 18–Apr 29 (sow outdoors) | Aug 31–Sep 21 (transplant) Aug 17–Sep 14 (sowing) |
| Spinach | – | Mar 4–25 (sow outdoors) | Aug 31–Sep 21 (sowing) |
| Kale | Feb 18–Mar 4 | Mar 18–Apr 1 (transplant) Mar 18–Apr 1 (sow outdoors) | Aug 3–31 (transplant) Jul 20–Aug 17 (sowing) |
| Collards | Feb 18–Mar 4 | Mar 18–Apr 15 (transplant) Mar 18–Apr 15 (sow outdoors) | Aug 3–31 (transplant) Jul 20–Aug 17 (sowing) |
| Broccoli | Feb 4–18 | Mar 18–Apr 1 (transplant) | Jul 20–Aug 17 (transplant) |
| Cabbage | Feb 4–18 | Mar 18–Apr 1 (transplant) | Jul 20–Aug 17 (transplant) |
| Cauliflower | Feb 4–18 | Apr 1–15 (transplant) | Jul 20–Aug 17 (transplant) |
| Brussels sprouts | Jan 21–Feb 4 | Mar 18–Apr 1 (transplant) | Jul 6–27 (transplant) |
| Kohlrabi | Feb 18–Mar 4 | Mar 18–Apr 1 (transplant) Mar 18–Apr 1 (sow outdoors) | Aug 17–31 (sowing) |
| Bok choy / Asian greens | – | Mar 18–Apr 1 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Arugula | – | Mar 18–Apr 15 (sow outdoors) | Aug 31–Sep 28 (sowing) |
| Mustard greens | – | Mar 18–Apr 8 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Swiss chard | Mar 4–18 | Apr 1–22 (transplant) Apr 1–29 (sow outdoors) | Aug 17–31 (sowing) |
| Beet | – | Mar 18–Apr 15 (sow outdoors) | Aug 17–31 (sowing) |
| Carrot | – | Mar 25–Apr 22 (sow outdoors) | Aug 3–17 (sowing) |
| Radish | – | Mar 11–Apr 22 (sow outdoors) | Sep 14–28 (sowing) |
| Turnip | – | Mar 18–Apr 8 (sow outdoors) | Aug 17–31 (sowing) |
| Parsnip | – | Mar 25–Apr 15 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 18–Mar 18 (sow outdoors) | Aug 3–17 (sowing) |
| Onion (bulbing) | Jan 21–Feb 4 | Mar 4–18 (transplant) | – |
| Green onion / scallion | – | Mar 4–Apr 1 (sow outdoors) | Aug 17–31 (sowing) |
| Leek | Jan 21–Feb 4 | Mar 18–Apr 1 (transplant) | – |
| Garlic | – | – | Sep 14–Oct 12 (sowing) |
| Shallot | – | Mar 4–18 (transplant) | Sep 14–Oct 12 (sowing) |
| Potato | – | Mar 18–Apr 1 (transplant) | Jul 6–20 (transplant) |
| Sweet potato | – | May 6–20 (transplant) | – |
| Sweet corn | – | Apr 22–May 6 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 22–May 6 (sow outdoors) | – |
| Bean, pole | – | Apr 22–May 6 (sow outdoors) | – |
| Lima bean | – | Apr 29–May 13 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 6–27 (sow outdoors) | – |
| Cucumber | Mar 18–25 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | – |
| Summer squash / zucchini | Mar 18–25 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | – |
| Winter squash | Mar 18–25 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | – |
| Pumpkin | – | Apr 22–May 6 (sow outdoors) | – |
| Watermelon | Mar 18–25 | Apr 29–May 13 (transplant) Apr 29–May 13 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 18–25 | Apr 29–May 13 (transplant) Apr 29–May 13 (sow outdoors) | – |
| Okra | Mar 4–18 | Apr 29–May 13 (transplant) Apr 29–May 13 (sow outdoors) | – |
| Celery | Jan 21–Feb 4 | Apr 22–29 (transplant) | – |
| Basil | Mar 4–18 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | – |
| Cilantro | – | Apr 1–29 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Parsley | Feb 4–18 | Apr 1–15 (transplant) Mar 25–Apr 15 (sow outdoors) | – |
| Dill | – | Apr 15–29 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Sunflower | – | Apr 15–29 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 18–Apr 1 (transplant) | – |
| Rhubarb (crowns) | – | Mar 18–Apr 1 (transplant) | – |
| Strawberry (plants) | – | Mar 18–Apr 1 (transplant) | Aug 17–Sep 14 (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: Mcminnville Muni AP, OR (NOAA GHCN-Daily ID USW00094273), elevation 159 ft, 8.6 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Mc Minnville, OR | 10 mi | Apr 5 | Nov 7 |
| Dallas 2 NE, OR | 10 mi | Apr 16 | Nov 1 |
| Salem Mcnary Fld, OR | 17 mi | Apr 3 | Nov 1 |
The average last-frost dates of these stations span 13 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97101
When is the last frost in 97101?
The average (50% chance) last spring freeze of 32°F for ZIP 97101 is April 15. For a more cautious planting date, use May 6, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97101?
The average first fall freeze is October 26. In 1 year in 10 it comes by October 5.
What hardiness zone is 97101?
ZIP 97101 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 97101 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
97371 Rickreall 97304 Salem 97128 McMinnville 97378 Sheridan 97114 Dayton 97303 Keizer 97338 Dallas 97127 Lafayette
Other ZIP codes in Yamhill County
97111 97114 97115 97127 97128 97132 97148 97347 97378 97396 All Yamhill County frost dates · Oregon frost dates
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