Frost Dates for Thibodaux, LA 70310
Thibodaux has 2 ZIP codes. The Thibodaux, LA frost page lists all of them with their dates.
Last spring frost February 20 · First fall frost December 9 · 292 frost-free days · USDA Zone 9b
ZIP 70310 has about 327 people, one of 2 ZIP codes in Thibodaux.
Very long season: 292 frost-free days. Spring frost risk spans January 26–March 18 (51 days). Fall frost risk spans November 20–December 27 (37 days).
Frost probability for 70310
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 18 | February 20 | January 26 |
| Fall (first frost) | November 20 | December 9 | December 27 |
Dates come from NOAA 1971–2000 freeze probabilities at DONALDSONVILLE 4 SW (38.1 km away); the 50% date is the median year.
Which crops fit a 292-day season in Thibodaux
In Thibodaux (292 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Jan 16 | Mar 6–Mar 13 | 250 | fits: 80 days to maturity, 250 available after Mar 6. | Aug 9 |
| Pepper | Jan 9 | Mar 6–Mar 13 | 250 | fits: 75 days to maturity, 250 available after Mar 6. | Aug 14 |
| Lettuce | Dec 26 | Jan 23–Jan 30 | 327 | two-plantings: Plant Jan 23 and again by Oct 18; both mature before Dec 16. | Oct 18 |
| Carrots | — | Jan 30–Feb 6 | 334 | fits: 70 days to maturity, 334 available after Jan 30. | Oct 7 |
| Cucumber | Jan 30 | Mar 6–Mar 13 | 264 | two-plantings: Plant Mar 6 and again by Sep 12; both mature before Nov 25. | Sep 12 |
| Beans | — | Feb 27–Mar 13 | 278 | two-plantings: Plant Feb 27 and again by Sep 19; both mature before Dec 2. | Sep 19 |
| Peas | — | Dec 26–Mar 6 | 355 | fits: 65 days to maturity, 355 available after Dec 26. | Sep 28 |
| Zucchini | Feb 6 | Mar 6–Mar 13 | 264 | two-plantings: Plant Mar 6 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Onion | Nov 28 | Jan 23–Feb 6 | 327 | fits: 100 days to maturity, 327 available after Jan 23. | — |
| Spinach | — | Dec 26–Feb 13 | 369 | two-plantings: Plant Dec 26 and again by Nov 6; both mature before Dec 30. | Nov 6 |
| Kale | Dec 12 | Jan 23–Feb 6 | 341 | two-plantings: Plant Jan 23 and again by Oct 22; both mature before Dec 30. | Oct 22 |
| Broccoli | Dec 26 | Jan 23–Feb 6 | 327 | fits: 80 days to maturity, 327 available after Jan 23. | Sep 13 |
| Cabbage | Dec 26 | Jan 23–Feb 6 | 341 | fits: 70 days to maturity, 341 available after Jan 23. | Oct 7 |
| Radish | — | Dec 26–Mar 20 | 355 | two-plantings: Plant Dec 26 and again by Nov 7; both mature before Dec 16. | Nov 7 |
| Beets | — | Dec 26–Mar 20 | 355 | two-plantings: Plant Dec 26 and again by Oct 8; both mature before Dec 16. | Oct 8 |
| Potatoes | — | Feb 6–Feb 13 | 313 | fits: 90 days to maturity, 313 available after Feb 6. | — |
| Garlic | — | Dec 9 | 397 | overwinter: Plant Dec 9 to Dec 30; harvest the following summer. | Dec 30 |
| Strawberry | — | Jan 16–Mar 13 | 348 | perennial: A perennial: plant Jan 16; it fruits from the following year and keeps producing for several years. | — |
| Corn | Jan 23 | Feb 27–Mar 6 | 264 | fits: 75 days to maturity, 264 available after Feb 27. | Aug 21 |
| Pumpkin | Feb 6 | Mar 6–Mar 6 | 257 | fits: 100 days to maturity, 257 available after Mar 6. | Jul 27 |
| Cauliflower | Jan 9 | Feb 13–Feb 27 | 306 | fits: 75 days to maturity, 306 available after Feb 13. | Sep 18 |
| Swiss Chard | Dec 26 | Feb 6–Feb 6 | 313 | two-plantings: Plant Feb 6 and again by Oct 8; both mature before Dec 16. | Oct 8 |
| Arugula | — | Dec 26–Mar 20 | 369 | two-plantings: Plant Dec 26 and again by Nov 6; both mature before Dec 30. | Nov 6 |
| Brussel Sprouts | Dec 26 | Jan 23–Feb 6 | 341 | fits: 100 days to maturity, 341 available after Jan 23. | Sep 7 |
| Butternut Squash | Feb 6 | Mar 6–Mar 13 | 257 | fits: 100 days to maturity, 257 available after Mar 6. | Jul 27 |
| Eggplant | Jan 2 | Mar 6–Mar 13 | 250 | fits: 70 days to maturity, 250 available after Mar 6. | Aug 19 |
| Okra | Jan 23 | Feb 27–Mar 6 | 271 | two-plantings: Plant Feb 27 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Basil | Jan 16 | Mar 13–Mar 13 | 257 | two-plantings: Plant Mar 13 and again by Sep 12; both mature before Nov 25. | Sep 12 |
| Cilantro | — | Jan 23–Feb 13 | 327 | two-plantings: Plant Jan 23 and again by Oct 13; both mature before Dec 16. | Oct 13 |
| Parsley | Dec 12 | Feb 27–Mar 6 | 292 | fits: 70 days to maturity, 292 available after Feb 27. | Sep 23 |
| Celery | Dec 12 | Feb 27–Mar 13 | 292 | fits: 120 days to maturity, 292 available after Feb 27. | Aug 4 |
| Scallions | Dec 12 | Jan 23–Feb 6 | 341 | two-plantings: Plant Jan 23 and again by Oct 17; both mature before Dec 30. | Oct 17 |
| Turnip | — | Jan 23–Feb 6 | 341 | two-plantings: Plant Jan 23 and again by Oct 27; both mature before Dec 30. | Oct 27 |
| Kohlrabi | — | Jan 9–Jan 23 | 355 | two-plantings: Plant Jan 9 and again by Oct 22; both mature before Dec 30. | Oct 22 |
| Bok Choy | Jan 23 | Feb 13–Feb 20 | 306 | two-plantings: Plant Feb 13 and again by Oct 18; both mature before Dec 16. | Oct 18 |
| Collards | Dec 12 | Jan 23–Feb 6 | 341 | two-plantings: Plant Jan 23 and again by Oct 17; both mature before Dec 30. | Oct 17 |
| Cantaloupe | Feb 6 | Mar 6–Mar 13 | 250 | fits: 85 days to maturity, 250 available after Mar 6. | Aug 4 |
| Chives | Nov 28 | Feb 27–Mar 6 | 306 | fits: 90 days to maturity, 306 available after Feb 27. | — |
| Dill | — | Dec 26–Mar 20 | 355 | two-plantings: Plant Dec 26 and again by Oct 8; both mature before Dec 16. | Oct 8 |
| Oregano | Dec 12 | Feb 27–Mar 6 | 306 | fits: 80 days to maturity, 306 available after Feb 27. | — |
| Rosemary | Nov 28 | Feb 27–Mar 6 | 292 | fits: 80 days to maturity, 292 available after Feb 27. | — |
| Sage | Dec 26 | Feb 27–Mar 6 | 306 | fits: 75 days to maturity, 306 available after Feb 27. | — |
| Thyme | Dec 12 | Feb 27–Mar 6 | 306 | fits: 90 days to maturity, 306 available after Feb 27. | — |
| Calendula | Jan 9 | Feb 6–Feb 20 | 313 | two-plantings: Plant Feb 6 and again by Oct 13; both mature before Dec 16. | Oct 13 |
| Cosmos | Jan 23 | Feb 20–Mar 6 | 278 | two-plantings: Plant Feb 20 and again by Sep 12; both mature before Nov 25. | Sep 12 |
| Lavender | Nov 28 | Feb 20–Mar 6 | 313 | fits: 90 days to maturity, 313 available after Feb 20. | — |
| Marigolds | Jan 9 | Feb 20–Feb 27 | 278 | two-plantings: Plant Feb 20 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Melons | Feb 6 | Mar 6–Mar 13 | 250 | fits: 85 days to maturity, 250 available after Mar 6. | Aug 4 |
| Mint | — | Feb 20–Mar 6 | 313 | fits: 90 days to maturity, 313 available after Feb 20. | — |
| Nasturtiums | Jan 23 | Feb 20–Feb 27 | 278 | two-plantings: Plant Feb 20 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Pole Beans | — | Feb 27–Mar 13 | 271 | fits: 65 days to maturity, 271 available after Feb 27. | Sep 7 |
| Spaghetti Squash | Feb 6 | Mar 6–Mar 13 | 257 | fits: 90 days to maturity, 257 available after Mar 6. | Aug 6 |
| Sunflowers | — | Feb 20–Mar 6 | 278 | fits: 70 days to maturity, 278 available after Feb 20. | Sep 2 |
| Tomatillos | Dec 26 | Feb 27–Mar 6 | 257 | fits: 75 days to maturity, 257 available after Feb 27. | Aug 14 |
| Watermelon | Feb 6 | Feb 27–Mar 6 | 257 | fits: 80 days to maturity, 257 available after Feb 27. | Aug 9 |
| Yellow Squash | Feb 6 | Mar 6–Mar 13 | 264 | two-plantings: Plant Mar 6 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Zinnias | Jan 23 | Feb 20–Mar 6 | 278 | two-plantings: Plant Feb 20 and again by Sep 12; both mature before Nov 25. | Sep 12 |
Month by month in Thibodaux
| Month | What to do |
|---|---|
| January | Start indoors: Eggplant (Jan 2), Calendula (Jan 9), Cauliflower (Jan 9), Marigolds (Jan 9), Pepper (Jan 9), Basil (Jan 16), +8 more. Direct sow from: Kohlrabi (Jan 9), Cilantro (Jan 23), Turnip (Jan 23), Carrots (Jan 30). Transplant from: Broccoli (Jan 23), Brussel Sprouts (Jan 23), Cabbage (Jan 23), Collards (Jan 23), Kale (Jan 23), Lettuce (Jan 23), +2 more. Plant: Strawberry (Jan 16). |
| February | Start indoors: Butternut Squash (Feb 6), Cantaloupe (Feb 6), Melons (Feb 6), Pumpkin (Feb 6), Spaghetti Squash (Feb 6), Watermelon (Feb 6), +2 more. Direct sow from: Potatoes (Feb 6), Sunflowers (Feb 20), Beans (Feb 27), Pole Beans (Feb 27). Transplant from: Calendula (Feb 6), Swiss Chard (Feb 6), Bok Choy (Feb 13), Cauliflower (Feb 13), Cosmos (Feb 20), Lavender (Feb 20), +15 more. Last frost around February 20. |
| March | Transplant from: Butternut Squash (Mar 6), Cantaloupe (Mar 6), Cucumber (Mar 6), Eggplant (Mar 6), Melons (Mar 6), Pepper (Mar 6), +6 more. |
| April | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| May | Harvest regularly to encourage production. Monitor for pests and disease. |
| June | Midsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall. |
| July | Last sowing dates: Butternut Squash (Jul 27), Pumpkin (Jul 27). |
| August | Last sowing dates: Cantaloupe (Aug 4), Celery (Aug 4), Melons (Aug 4), Spaghetti Squash (Aug 6), Tomato (Aug 9), Watermelon (Aug 9), +4 more. |
| September | Last sowing dates: Sunflowers (Sep 2), Brussel Sprouts (Sep 7), Pole Beans (Sep 7), Basil (Sep 12), Cosmos (Sep 12), Cucumber (Sep 12), +11 more. |
| October | Last sowing dates: Cabbage (Oct 7), Carrots (Oct 7), Beets (Oct 8), Dill (Oct 8), Swiss Chard (Oct 8), Calendula (Oct 13), +8 more. |
| November | Start indoors: Chives (Nov 28), Lavender (Nov 28), Onion (Nov 28), Rosemary (Nov 28). Last sowing dates: Arugula (Nov 6), Spinach (Nov 6), Radish (Nov 7). |
| December | Start indoors: Celery (Dec 12), Collards (Dec 12), Kale (Dec 12), Oregano (Dec 12), Parsley (Dec 12), Scallions (Dec 12), +8 more. Direct sow from: Garlic (Dec 9), Arugula (Dec 26), Beets (Dec 26), Dill (Dec 26), Peas (Dec 26), Radish (Dec 26), +1 more. First frost around December 9. Last sowing dates: Garlic (Dec 30). |
Frequently Asked Questions
What is the last frost date for Thibodaux, LA (ZIP 70310)?
The median last spring frost date for Thibodaux, LA (ZIP code 70310) is around February 20. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before January 26; one in ten it runs past March 18.
What is the first fall frost date in Thibodaux, LA?
The median first fall frost date for Thibodaux, LA is around December 9. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around November 20 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Thibodaux, LA?
The frost-free growing season in Thibodaux is about 292 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Thibodaux (292 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Thibodaux, LA?
Thibodaux, LA is in USDA hardiness zone 9b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Thibodaux, LA?
Start tomatoes indoors Jan 16 and plant out Mar 6 in Thibodaux. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Thibodaux?
Two: plant Jan 23 and again by Oct 18; both mature before Dec 16.
When do I plant garlic in Thibodaux?
Dec 9 to Dec 30; it overwinters and is ready the following summer.
Can I get two tomato crops in Thibodaux?
Yes: plant out Mar 6 for a summer crop, and set out a second round of transplants by Aug 9 for a fall crop.
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