Fall in zone 9aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 97450 (Langlois, 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, Langlois #2, OR (4 miles away).
- Average last spring frostMar 1650% chance of a 32°F freeze after this date
- Average first fall frostNov 2950% chance of a 32°F freeze by this date
- Growing season (frost-free)258 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 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
53°F 50–55°F
24-hour average · latest 54°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Coos Bay 8 SW (25 mi).
4-inch depth
54°F 50–55°F
24-hour average · latest 54°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Coos Bay 8 SW (25 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 97450 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 54°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent window is mostly past. Next: spring, when soil reaches 50°F (typically March to April).
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 sowing Sep 20–Oct 18
- Lettuce: fall transplant Oct 4–25
- Spinach: fall sowing Oct 4–25
- Bok choy / Asian greens: fall sowing Oct 4–18
- Arugula: fall sowing Oct 4–Nov 1
- Mustard greens: fall sowing Oct 4–18
- Radish: fall sowing Oct 18–Nov 1
- Garlic: fall sowing Oct 18–Nov 15
- Shallot: fall sowing Oct 18–Nov 15
- Cilantro: fall sowing Oct 4–18
- Dill: fall sowing Oct 4–18
- Strawberry (plants): fall transplant Sep 20–Oct 18
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 29: 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 6 |
| 50% (the "average" last frost) | Mar 16 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 15 |
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) | Nov 1 |
| 50% (the "average" first frost) | Nov 29 |
| 90% (late: most years have frozen by now) | Jan 4 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 24 | Nov 1 |
| 32°F (freeze) | Mar 16 | Nov 29 |
| 28°F (hard freeze) | Jan 29 | Dec 21 |
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 97450
Dates count from your average last spring frost (Mar 16) and first fall frost (Nov 29). 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 19–Feb 2 | Mar 23–Apr 6 (transplant) | Aug 2–30 (transplant) |
| Pepper (sweet and hot) | Jan 5–19 | Mar 30–Apr 13 (transplant) | Aug 9–30 (transplant) |
| Eggplant | Jan 5–19 | Mar 30–Apr 13 (transplant) | Aug 9–30 (transplant) |
| Tomatillo | Jan 19–Feb 2 | Mar 23–Apr 6 (transplant) | – |
| Lettuce | Jan 19–Feb 2 | Feb 23–Mar 16 (transplant) Feb 16–Mar 30 (sow outdoors) | Oct 4–25 (transplant) Sep 20–Oct 18 (sowing) |
| Spinach | – | Feb 2–23 (sow outdoors) | Oct 4–25 (sowing) |
| Kale | Jan 19–Feb 2 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Sep 6–Oct 4 (transplant) Aug 23–Sep 20 (sowing) |
| Collards | Jan 19–Feb 2 | Feb 16–Mar 16 (transplant) Feb 16–Mar 16 (sow outdoors) | Sep 6–Oct 4 (transplant) Aug 23–Sep 20 (sowing) |
| Broccoli | Jan 5–19 | Feb 16–Mar 2 (transplant) | Aug 23–Sep 20 (transplant) |
| Cabbage | Jan 5–19 | Feb 16–Mar 2 (transplant) | Aug 23–Sep 20 (transplant) |
| Cauliflower | Jan 5–19 | Mar 2–16 (transplant) | Aug 23–Sep 20 (transplant) |
| Brussels sprouts | Dec 22–Jan 5 | Feb 16–Mar 2 (transplant) | Aug 9–30 (transplant) |
| Kohlrabi | Jan 19–Feb 2 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Bok choy / Asian greens | – | Feb 16–Mar 2 (sow outdoors) | Oct 4–18 (sowing) |
| Arugula | – | Feb 16–Mar 16 (sow outdoors) | Oct 4–Nov 1 (sowing) |
| Mustard greens | – | Feb 16–Mar 9 (sow outdoors) | Oct 4–18 (sowing) |
| Swiss chard | Feb 2–16 | Mar 2–23 (transplant) Mar 2–30 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Beet | – | Feb 16–Mar 16 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Carrot | – | Feb 23–Mar 23 (sow outdoors) | Sep 6–20 (sowing) |
| Radish | – | Feb 9–Mar 23 (sow outdoors) | Oct 18–Nov 1 (sowing) |
| Turnip | – | Feb 16–Mar 9 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Parsnip | – | Feb 23–Mar 16 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 19–Feb 16 (sow outdoors) | Sep 6–20 (sowing) |
| Onion (bulbing) | Dec 22–Jan 5 | Feb 2–16 (transplant) | – |
| Green onion / scallion | – | Feb 2–Mar 2 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Leek | Dec 22–Jan 5 | Feb 16–Mar 2 (transplant) | – |
| Garlic | – | – | Oct 18–Nov 15 (sowing) |
| Shallot | – | Feb 2–16 (transplant) | Oct 18–Nov 15 (sowing) |
| Potato | – | Feb 16–Mar 2 (transplant) | Aug 9–23 (transplant) |
| Sweet potato | – | Apr 6–20 (transplant) | – |
| Sweet corn | – | Mar 23–Apr 6 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 23–Apr 6 (sow outdoors) | Sep 6–20 (sowing) |
| Bean, pole | – | Mar 23–Apr 6 (sow outdoors) | – |
| Lima bean | – | Mar 30–Apr 13 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 6–27 (sow outdoors) | – |
| Cucumber | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | Sep 6–20 (sowing) |
| Summer squash / zucchini | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | Sep 6–20 (sowing) |
| Winter squash | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Pumpkin | – | Mar 23–Apr 6 (sow outdoors) | – |
| Watermelon | Feb 16–23 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 16–23 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Okra | Feb 2–16 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Celery | Dec 22–Jan 5 | Mar 23–30 (transplant) | – |
| Basil | Feb 2–16 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Cilantro | – | Mar 2–30 (sow outdoors) | Oct 4–18 (sowing) |
| Parsley | Jan 5–19 | Mar 2–16 (transplant) Feb 23–Mar 16 (sow outdoors) | – |
| Dill | – | Mar 16–30 (sow outdoors) | Oct 4–18 (sowing) |
| Sunflower | – | Mar 16–30 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 16–Mar 2 (transplant) | – |
| Rhubarb (crowns) | – | Feb 16–Mar 2 (transplant) | – |
| Strawberry (plants) | – | Feb 16–Mar 2 (transplant) | Sep 20–Oct 18 (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: Langlois #2, OR (NOAA GHCN-Daily ID USC00354721), elevation 90 ft, 4.1 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Port Orford #2, OR | 13 mi | Feb 17 | Dec 3 |
| Powers, OR | 16 mi | Mar 21 | Nov 14 |
| Bandon 2 NNE, OR | 17 mi | Mar 9 | Nov 27 |
The average last-frost dates of these stations span 35 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97450
When is the last frost in 97450?
The average (50% chance) last spring freeze of 32°F for ZIP 97450 is March 16. For a more cautious planting date, use April 15, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97450?
The average first fall freeze is November 29. In 1 year in 10 it comes by November 1.
What hardiness zone is 97450?
ZIP 97450 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 97450 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
97476 97465 Port Orford 97411 Bandon 97414 97466 Powers 97458 Myrtle Point 97423 Coquille 97406
Other ZIP codes in Curry County
97406 97415 97444 97465 97476 All Curry County frost dates · Oregon frost dates
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- Freeze alerts
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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.