Frost dates for ZIP 29431 (Bonneau, SC)
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, Moncks Corner 4 N, SC (6 miles away).
- Average last spring frostMar 1050% chance of a 32°F freeze after this date
- Average first fall frostNov 2650% chance of a 32°F freeze by this date
- Growing season (frost-free)265 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
73°F 55°F or warmer
24-hour average · latest 69°F, as of Oct 17, 10:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of McClellanville 7 NE (31 mi).
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 29431 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 mid-February to early March; fall September to early October.
Fertilizer window
Lawn region: Southeast (warm, humid). Timing only; always follow the product label.
- Centipedegrass (warm-season): Spring: Not before mid-May (NC State); after full green-up (about Apr 25 here, using green-up about 3–4 weeks after your average last frost); Summer: Optional mid-summer feeding, especially on sandy coastal soils. Avoid: Early-spring feeding, frequent feeding and liming unless a soil test calls for it (centipede decline).
Plant now
- Lettuce: fall transplant Oct 1–22
- Spinach: fall sowing Oct 1–22
- Arugula: fall sowing Oct 1–29
- Radish: fall sowing Oct 15–29
- Garlic: fall sowing Oct 15–Nov 12
- Shallot: fall sowing Oct 15–Nov 12
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 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) | Feb 14 |
| 50% (the "average" last frost) | Mar 10 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 29 |
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 7 |
| 50% (the "average" first frost) | Nov 26 |
| 90% (late: most years have frozen by now) | Dec 22 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 25 | Nov 13 |
| 32°F (freeze) | Mar 10 | Nov 26 |
| 28°F (hard freeze) | Feb 22 | Dec 13 |
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 29431
Dates count from your average last spring frost (Mar 10) and first fall frost (Nov 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 | Jan 13–27 | Mar 17–31 (transplant) | Jul 30–Aug 27 (transplant) |
| Pepper (sweet and hot) | Dec 30–Jan 13 | Mar 24–Apr 7 (transplant) | Aug 6–27 (transplant) |
| Eggplant | Dec 30–Jan 13 | Mar 24–Apr 7 (transplant) | Aug 6–27 (transplant) |
| Tomatillo | Jan 13–27 | Mar 17–31 (transplant) | – |
| Lettuce | Jan 13–27 | Feb 17–Mar 10 (transplant) Feb 10–Mar 24 (sow outdoors) | Oct 1–22 (transplant) Sep 17–Oct 15 (sowing) |
| Spinach | – | Jan 27–Feb 17 (sow outdoors) | Oct 1–22 (sowing) |
| Kale | Jan 13–27 | Feb 10–24 (transplant) Feb 10–24 (sow outdoors) | Sep 3–Oct 1 (transplant) Aug 20–Sep 17 (sowing) |
| Collards | Jan 13–27 | Feb 10–Mar 10 (transplant) Feb 10–Mar 10 (sow outdoors) | Sep 3–Oct 1 (transplant) Aug 20–Sep 17 (sowing) |
| Broccoli | Dec 30–Jan 13 | Feb 10–24 (transplant) | Aug 20–Sep 17 (transplant) |
| Cabbage | Dec 30–Jan 13 | Feb 10–24 (transplant) | Aug 20–Sep 17 (transplant) |
| Cauliflower | Dec 30–Jan 13 | Feb 24–Mar 10 (transplant) | Aug 20–Sep 17 (transplant) |
| Brussels sprouts | Dec 16–30 | Feb 10–24 (transplant) | Aug 6–27 (transplant) |
| Kohlrabi | Jan 13–27 | Feb 10–24 (transplant) Feb 10–24 (sow outdoors) | Sep 17–Oct 1 (sowing) |
| Bok choy / Asian greens | – | Feb 10–24 (sow outdoors) | Oct 1–15 (sowing) |
| Arugula | – | Feb 10–Mar 10 (sow outdoors) | Oct 1–29 (sowing) |
| Mustard greens | – | Feb 10–Mar 3 (sow outdoors) | Oct 1–15 (sowing) |
| Swiss chard | Jan 27–Feb 10 | Feb 24–Mar 17 (transplant) Feb 24–Mar 24 (sow outdoors) | Sep 17–Oct 1 (sowing) |
| Beet | – | Feb 10–Mar 10 (sow outdoors) | Sep 17–Oct 1 (sowing) |
| Carrot | – | Feb 17–Mar 17 (sow outdoors) | Sep 3–17 (sowing) |
| Radish | – | Feb 3–Mar 17 (sow outdoors) | Oct 15–29 (sowing) |
| Turnip | – | Feb 10–Mar 3 (sow outdoors) | Sep 17–Oct 1 (sowing) |
| Parsnip | – | Feb 17–Mar 10 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 13–Feb 10 (sow outdoors) | Sep 3–17 (sowing) |
| Onion (bulbing) | Dec 16–30 | Jan 27–Feb 10 (transplant) | – |
| Green onion / scallion | – | Jan 27–Feb 24 (sow outdoors) | Sep 17–Oct 1 (sowing) |
| Leek | Dec 16–30 | Feb 10–24 (transplant) | – |
| Garlic | – | – | Oct 15–Nov 12 (sowing) |
| Shallot | – | Jan 27–Feb 10 (transplant) | Oct 15–Nov 12 (sowing) |
| Potato | – | Feb 10–24 (transplant) | Aug 6–20 (transplant) |
| Sweet potato | – | Mar 31–Apr 14 (transplant) | – |
| Sweet corn | – | Mar 17–31 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 17–31 (sow outdoors) | Sep 3–17 (sowing) |
| Bean, pole | – | Mar 17–31 (sow outdoors) | – |
| Lima bean | – | Mar 24–Apr 7 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 31–Apr 21 (sow outdoors) | – |
| Cucumber | Feb 10–17 | Mar 17–31 (transplant) Mar 17–31 (sow outdoors) | Sep 3–17 (sowing) |
| Summer squash / zucchini | Feb 10–17 | Mar 17–31 (transplant) Mar 17–31 (sow outdoors) | Sep 3–17 (sowing) |
| Winter squash | Feb 10–17 | Mar 17–31 (transplant) Mar 17–31 (sow outdoors) | – |
| Pumpkin | – | Mar 17–31 (sow outdoors) | – |
| Watermelon | Feb 10–17 | Mar 24–Apr 7 (transplant) Mar 24–Apr 7 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 10–17 | Mar 24–Apr 7 (transplant) Mar 24–Apr 7 (sow outdoors) | – |
| Okra | Jan 27–Feb 10 | Mar 24–Apr 7 (transplant) Mar 24–Apr 7 (sow outdoors) | – |
| Celery | Dec 16–30 | Mar 17–24 (transplant) | – |
| Basil | Jan 27–Feb 10 | Mar 17–31 (transplant) Mar 17–31 (sow outdoors) | – |
| Cilantro | – | Feb 24–Mar 24 (sow outdoors) | Oct 1–15 (sowing) |
| Parsley | Dec 30–Jan 13 | Feb 24–Mar 10 (transplant) Feb 17–Mar 10 (sow outdoors) | – |
| Dill | – | Mar 10–24 (sow outdoors) | Oct 1–15 (sowing) |
| Sunflower | – | Mar 10–24 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 10–24 (transplant) | – |
| Rhubarb (crowns) | – | Feb 10–24 (transplant) | – |
| Strawberry (plants) | – | Feb 10–24 (transplant) | Sep 17–Oct 15 (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: Moncks Corner 4 N, SC (NOAA GHCN-Daily ID USC00385946), elevation 49 ft, 6.4 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Jamestown, SC | 11 mi | Mar 22 | Nov 13 |
| Andrews, SC | 22 mi | Mar 23 | Nov 13 |
| Summerville 4W, SC | 26 mi | Mar 22 | Nov 12 |
The average last-frost dates of these stations span 13 days, a rough guide to local variation. See data sources & methods.
Frost questions for 29431
When is the last frost in 29431?
The average (50% chance) last spring freeze of 32°F for ZIP 29431 is March 10. For a more cautious planting date, use March 29, when only 1 year in 10 still sees a later freeze.
When is the first frost in 29431?
The average first fall freeze is November 26. In 1 year in 10 it comes by November 7.
What hardiness zone is 29431?
ZIP 29431 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 29431 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
29479 Russellville 29434 29461 Moncks Corner 29564 Lane 29450 29469 Pinopolis 29468 29453 Jamestown
Other ZIP codes in Berkeley County
29410 29434 29436 29445 29450 29453 29461 29468 29469 29479 29486 29492 All Berkeley County frost dates · South Carolina frost dates
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