Fall in zone 9bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 70310 (Thibodaux, LA)
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, Thibodaux 4 SE, LA (3 miles away).
- Average last spring frostFeb 550% chance of a 32°F freeze after this date
- Average first fall frostDec 1450% chance of a 32°F freeze by this date
- Growing season (frost-free)311 daysmedian, 32°F threshold
- USDA hardiness zone9b25 to 30°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
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
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 70310 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring late January to mid-February (south Florida: earlier; check local soil temps); fall October to early November.
Fertilizer window
Lawn region: Gulf Coast and peninsular Florida. Timing only; always follow the product label.
- St. Augustinegrass (warm-season): Spring: About 2–3 weeks after full green-up (May in the Carolinas; earlier in Florida and south Texas) (about Mar 16 here, using green-up about 3–4 weeks after your average last frost); Summer: Light feedings June–August where local rules allow; Last: No later than about mid-September in the Carolinas, about 6–8 weeks before first frost elsewhere. Avoid: Feeding before green-up or late in fall (feeds weeds and favors large patch and cold injury).
Plant now
- Lettuce: fall sowing Oct 5–Nov 2
- Kale: fall transplant Sep 21–Oct 19
- Collards: fall transplant Sep 21–Oct 19
- Kohlrabi: fall sowing Oct 5–19
- Swiss chard: fall sowing Oct 5–19
- Beet: fall sowing Oct 5–19
- Turnip: fall sowing Oct 5–19
- Green onion / scallion: fall sowing Oct 5–19
- Strawberry (plants): fall transplant Oct 5–Nov 2
Coming up in the next 3 weeks
- Lettuce: fall transplant Oct 19–Nov 9
- Spinach: fall sowing Oct 19–Nov 9
- Bok choy / Asian greens: fall sowing Oct 19–Nov 2
- Arugula: fall sowing Oct 19–Nov 16
- Mustard greens: fall sowing Oct 19–Nov 2
- Radish: fall sowing Nov 2–16
- Garlic: fall sowing Nov 2–30
- Shallot: fall sowing Nov 2–30
- Cilantro: fall sowing Oct 19–Nov 2
- Dill: fall sowing Oct 19–Nov 2
Prune now
No frost-timed pruning windows are open this week.
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) | Jan 3 |
| 50% (the "average" last frost) | Feb 5 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 7 |
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 19 |
| 50% (the "average" first frost) | Dec 14 |
| 90% (late: most years have frozen by now) | Jan 15 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Feb 27 | Nov 29 |
| 32°F (freeze) | Feb 5 | Dec 14 |
| 28°F (hard freeze) | Jan 23 | Jan 1 (next year) |
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 70310
Dates count from your average last spring frost (Feb 5) and first fall frost (Dec 14). 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 | Dec 11–25 | Feb 12–26 (transplant) | Aug 17–Sep 14 (transplant) |
| Pepper (sweet and hot) | Nov 27–Dec 11 | Feb 19–Mar 5 (transplant) | Aug 24–Sep 14 (transplant) |
| Eggplant | Nov 27–Dec 11 | Feb 19–Mar 5 (transplant) | Aug 24–Sep 14 (transplant) |
| Tomatillo | Dec 11–25 | Feb 12–26 (transplant) | – |
| Lettuce | Dec 11–25 | Jan 15–Feb 5 (transplant) Jan 8–Feb 19 (sow outdoors) | Oct 19–Nov 9 (transplant) Oct 5–Nov 2 (sowing) |
| Spinach | – | Dec 25–Jan 15 (sow outdoors) | Oct 19–Nov 9 (sowing) |
| Kale | Dec 11–25 | Jan 8–22 (transplant) Jan 8–22 (sow outdoors) | Sep 21–Oct 19 (transplant) Sep 7–Oct 5 (sowing) |
| Collards | Dec 11–25 | Jan 8–Feb 5 (transplant) Jan 8–Feb 5 (sow outdoors) | Sep 21–Oct 19 (transplant) Sep 7–Oct 5 (sowing) |
| Broccoli | Nov 27–Dec 11 | Jan 8–22 (transplant) | Sep 7–Oct 5 (transplant) |
| Cabbage | Nov 27–Dec 11 | Jan 8–22 (transplant) | Sep 7–Oct 5 (transplant) |
| Cauliflower | Nov 27–Dec 11 | Jan 22–Feb 5 (transplant) | Sep 7–Oct 5 (transplant) |
| Brussels sprouts | Nov 13–27 | Jan 8–22 (transplant) | Aug 24–Sep 14 (transplant) |
| Kohlrabi | Dec 11–25 | Jan 8–22 (transplant) Jan 8–22 (sow outdoors) | Oct 5–19 (sowing) |
| Bok choy / Asian greens | – | Jan 8–22 (sow outdoors) | Oct 19–Nov 2 (sowing) |
| Arugula | – | Jan 8–Feb 5 (sow outdoors) | Oct 19–Nov 16 (sowing) |
| Mustard greens | – | Jan 8–29 (sow outdoors) | Oct 19–Nov 2 (sowing) |
| Swiss chard | Dec 25–Jan 8 | Jan 22–Feb 12 (transplant) Jan 22–Feb 19 (sow outdoors) | Oct 5–19 (sowing) |
| Beet | – | Jan 8–Feb 5 (sow outdoors) | Oct 5–19 (sowing) |
| Carrot | – | Jan 15–Feb 12 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Radish | – | Jan 1–Feb 12 (sow outdoors) | Nov 2–16 (sowing) |
| Turnip | – | Jan 8–29 (sow outdoors) | Oct 5–19 (sowing) |
| Parsnip | – | Jan 15–Feb 5 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Dec 11–Jan 8 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Onion (bulbing) | Nov 13–27 | Dec 25–Jan 8 (transplant) | – |
| Green onion / scallion | – | Dec 25–Jan 22 (sow outdoors) | Oct 5–19 (sowing) |
| Leek | Nov 13–27 | Jan 8–22 (transplant) | – |
| Garlic | – | – | Nov 2–30 (sowing) |
| Shallot | – | Dec 25–Jan 8 (transplant) | Nov 2–30 (sowing) |
| Potato | – | Jan 8–22 (transplant) | Aug 24–Sep 7 (transplant) |
| Sweet potato | – | Feb 26–Mar 12 (transplant) | – |
| Sweet corn | – | Feb 12–26 (sow outdoors) | – |
| Bean, bush (snap) | – | Feb 12–26 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Bean, pole | – | Feb 12–26 (sow outdoors) | – |
| Lima bean | – | Feb 19–Mar 5 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Feb 26–Mar 19 (sow outdoors) | – |
| Cucumber | Jan 8–15 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Summer squash / zucchini | Jan 8–15 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Winter squash | Jan 8–15 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | – |
| Pumpkin | – | Feb 12–26 (sow outdoors) | – |
| Watermelon | Jan 8–15 | Feb 19–Mar 5 (transplant) Feb 19–Mar 5 (sow outdoors) | – |
| Cantaloupe / muskmelon | Jan 8–15 | Feb 19–Mar 5 (transplant) Feb 19–Mar 5 (sow outdoors) | – |
| Okra | Dec 25–Jan 8 | Feb 19–Mar 5 (transplant) Feb 19–Mar 5 (sow outdoors) | – |
| Celery | Nov 13–27 | Feb 12–19 (transplant) | – |
| Basil | Dec 25–Jan 8 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | – |
| Cilantro | – | Jan 22–Feb 19 (sow outdoors) | Oct 19–Nov 2 (sowing) |
| Parsley | Nov 27–Dec 11 | Jan 22–Feb 5 (transplant) Jan 15–Feb 5 (sow outdoors) | – |
| Dill | – | Feb 5–19 (sow outdoors) | Oct 19–Nov 2 (sowing) |
| Sunflower | – | Feb 5–19 (sow outdoors) | – |
| Asparagus (crowns) | – | Jan 8–22 (transplant) | – |
| Rhubarb (crowns) | – | Jan 8–22 (transplant) | – |
| Strawberry (plants) | – | Jan 8–22 (transplant) | Oct 5–Nov 2 (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.
Plants that do well here
Louisiana has a university or garden plant program: Louisiana Super Plants. Plant frost-tender annuals after February 5 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Thibodaux 4 SE, LA (NOAA GHCN-Daily ID USC00169013), elevation 15 ft, 3.0 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Houma, LA | 10 mi | Feb 5 | Dec 17 |
| Reserve, LA | 23 mi | Feb 9 | Dec 14 |
| Morgan City, LA | 24 mi | Jan 30 | Jan 1 (next year) |
The average last-frost dates of these stations span 10 days, a rough guide to local variation. See data sources & methods.
Frost questions for 70310
When is the last frost in 70310?
The average (50% chance) last spring freeze of 32°F for ZIP 70310 is February 5. For a more cautious planting date, use March 7, when only 1 year in 10 still sees a later freeze.
When is the first frost in 70310?
The average first fall freeze is December 14. In 1 year in 10 it comes by November 19.
What hardiness zone is 70310?
ZIP 70310 is in USDA zone 9b (25 to 30°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 70310 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
70301 Chackbay 70359 Gray 70395 Schriever 70352 70372 Labadieville 70364 Bayou Blue 70394 Raceland 70090 Wallace
Other ZIP codes in Lafourche Parish
70301 70343 70345 70354 70355 70357 70373 70374 70375 70394 All Lafourche Parish frost dates · Louisiana 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.