Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 39140 (New Hebron, MS)
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, Monticello, MS (15 miles away).
- Average last spring frostMar 1250% chance of a 32°F freeze after this date
- Average first fall frostNov 1050% chance of a 32°F freeze by this date
- Growing season (frost-free)242 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 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 39140 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 27 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
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 10: 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 22 |
| 50% (the "average" last frost) | Mar 12 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 3 |
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 23 |
| 50% (the "average" first frost) | Nov 10 |
| 90% (late: most years have frozen by now) | Dec 3 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 27 | Nov 1 |
| 32°F (freeze) | Mar 12 | Nov 10 |
| 28°F (hard freeze) | Feb 27 | Nov 22 |
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 39140
Dates count from your average last spring frost (Mar 12) and first fall frost (Nov 10). 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 15–29 | Mar 19–Apr 2 (transplant) | Jul 14–Aug 11 (transplant) |
| Pepper (sweet and hot) | Jan 1–15 | Mar 26–Apr 9 (transplant) | Jul 21–Aug 11 (transplant) |
| Eggplant | Jan 1–15 | Mar 26–Apr 9 (transplant) | Jul 21–Aug 11 (transplant) |
| Tomatillo | Jan 15–29 | Mar 19–Apr 2 (transplant) | – |
| Lettuce | Jan 15–29 | Feb 19–Mar 12 (transplant) Feb 12–Mar 26 (sow outdoors) | Sep 15–Oct 6 (transplant) Sep 1–29 (sowing) |
| Spinach | – | Jan 29–Feb 19 (sow outdoors) | Sep 15–Oct 6 (sowing) |
| Kale | Jan 15–29 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Collards | Jan 15–29 | Feb 12–Mar 12 (transplant) Feb 12–Mar 12 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Broccoli | Jan 1–15 | Feb 12–26 (transplant) | Aug 4–Sep 1 (transplant) |
| Cabbage | Jan 1–15 | Feb 12–26 (transplant) | Aug 4–Sep 1 (transplant) |
| Cauliflower | Jan 1–15 | Feb 26–Mar 12 (transplant) | Aug 4–Sep 1 (transplant) |
| Brussels sprouts | Dec 18–Jan 1 | Feb 12–26 (transplant) | Jul 21–Aug 11 (transplant) |
| Kohlrabi | Jan 15–29 | Feb 12–26 (transplant) Feb 12–26 (sow outdoors) | Sep 1–15 (sowing) |
| Bok choy / Asian greens | – | Feb 12–26 (sow outdoors) | Sep 15–29 (sowing) |
| Arugula | – | Feb 12–Mar 12 (sow outdoors) | Sep 15–Oct 13 (sowing) |
| Mustard greens | – | Feb 12–Mar 5 (sow outdoors) | Sep 15–29 (sowing) |
| Swiss chard | Jan 29–Feb 12 | Feb 26–Mar 19 (transplant) Feb 26–Mar 26 (sow outdoors) | Sep 1–15 (sowing) |
| Beet | – | Feb 12–Mar 12 (sow outdoors) | Sep 1–15 (sowing) |
| Carrot | – | Feb 19–Mar 19 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Radish | – | Feb 5–Mar 19 (sow outdoors) | Sep 29–Oct 13 (sowing) |
| Turnip | – | Feb 12–Mar 5 (sow outdoors) | Sep 1–15 (sowing) |
| Parsnip | – | Feb 19–Mar 12 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 15–Feb 12 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Onion (bulbing) | Dec 18–Jan 1 | Jan 29–Feb 12 (transplant) | – |
| Green onion / scallion | – | Jan 29–Feb 26 (sow outdoors) | Sep 1–15 (sowing) |
| Leek | Dec 18–Jan 1 | Feb 12–26 (transplant) | – |
| Garlic | – | – | Sep 29–Oct 27 (sowing) |
| Shallot | – | Jan 29–Feb 12 (transplant) | Sep 29–Oct 27 (sowing) |
| Potato | – | Feb 12–26 (transplant) | Jul 21–Aug 4 (transplant) |
| Sweet potato | – | Apr 2–16 (transplant) | – |
| Sweet corn | – | Mar 19–Apr 2 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 19–Apr 2 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Bean, pole | – | Mar 19–Apr 2 (sow outdoors) | – |
| Lima bean | – | Mar 26–Apr 9 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 2–23 (sow outdoors) | – |
| Cucumber | Feb 12–19 | Mar 19–Apr 2 (transplant) Mar 19–Apr 2 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Summer squash / zucchini | Feb 12–19 | Mar 19–Apr 2 (transplant) Mar 19–Apr 2 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Winter squash | Feb 12–19 | Mar 19–Apr 2 (transplant) Mar 19–Apr 2 (sow outdoors) | – |
| Pumpkin | – | Mar 19–Apr 2 (sow outdoors) | – |
| Watermelon | Feb 12–19 | Mar 26–Apr 9 (transplant) Mar 26–Apr 9 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 12–19 | Mar 26–Apr 9 (transplant) Mar 26–Apr 9 (sow outdoors) | – |
| Okra | Jan 29–Feb 12 | Mar 26–Apr 9 (transplant) Mar 26–Apr 9 (sow outdoors) | – |
| Celery | Dec 18–Jan 1 | Mar 19–26 (transplant) | – |
| Basil | Jan 29–Feb 12 | Mar 19–Apr 2 (transplant) Mar 19–Apr 2 (sow outdoors) | – |
| Cilantro | – | Feb 26–Mar 26 (sow outdoors) | Sep 15–29 (sowing) |
| Parsley | Jan 1–15 | Feb 26–Mar 12 (transplant) Feb 19–Mar 12 (sow outdoors) | – |
| Dill | – | Mar 12–26 (sow outdoors) | Sep 15–29 (sowing) |
| Sunflower | – | Mar 12–26 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 12–26 (transplant) | – |
| Rhubarb (crowns) | – | Feb 12–26 (transplant) | – |
| Strawberry (plants) | – | Feb 12–26 (transplant) | Sep 1–29 (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
Mississippi has a university or garden plant program: Mississippi Medallion. Plant frost-tender annuals after March 12 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Monticello, MS (NOAA GHCN-Daily ID USC00225987), elevation 191 ft, 14.5 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| D'lo 2 SW, MS | 15 mi | Mar 10 | Nov 16 |
| Crystal Spgs EXP STN, MS | 25 mi | Mar 11 | Nov 16 |
| Hazlehurst 5 SW, MS | 26 mi | Mar 14 | Nov 13 |
The average last-frost dates of these stations span 4 days, a rough guide to local variation. See data sources & methods.
Frost questions for 39140
When is the last frost in 39140?
The average (50% chance) last spring freeze of 32°F for ZIP 39140 is March 12. For a more cautious planting date, use April 3, when only 1 year in 10 still sees a later freeze.
When is the first frost in 39140?
The average first fall freeze is November 10. In 1 year in 10 it comes by October 23.
What hardiness zone is 39140?
ZIP 39140 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 39140 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
39149 39663 Silver Creek 39474 Prentiss 39078 Georgetown 39665 39082 39654 Monticello 39062 D'Lo
Other ZIP codes in Jefferson Davis County
39421 39427 39474 39656 All Jefferson Davis County frost dates · Mississippi frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- 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.