Frost dates for ZIP 39470 (Poplarville, 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, Poplarville EXP STN, MS (2 miles away).
- Average last spring frostMar 1050% chance of a 32°F freeze after this date
- Average first fall frostNov 2150% chance of a 32°F freeze by this date
- Growing season (frost-free)257 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 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 67°F, as of Oct 17, 10:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Tnc Fort Bayou (55 mi).
4-inch depth
74°F 55°F or warmer
24-hour average · latest 71°F, as of Oct 17, 10:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Tnc Fort Bayou (55 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 39470 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 74°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.
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 Sep 26–Oct 17
- Spinach: fall sowing Sep 26–Oct 17
- Arugula: fall sowing Sep 26–Oct 24
- Radish: fall sowing Oct 10–24
- Garlic: fall sowing Oct 10–Nov 7
- Shallot: fall sowing Oct 10–Nov 7
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 21: 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 16 |
| 50% (the "average" last frost) | Mar 10 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 1 |
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 2 |
| 50% (the "average" first frost) | Nov 21 |
| 90% (late: most years have frozen by now) | Dec 12 |
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 8 |
| 32°F (freeze) | Mar 10 | Nov 21 |
| 28°F (hard freeze) | Feb 24 | Dec 3 |
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 39470
Dates count from your average last spring frost (Mar 10) and first fall frost (Nov 21). 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 25–Aug 22 (transplant) |
| Pepper (sweet and hot) | Dec 30–Jan 13 | Mar 24–Apr 7 (transplant) | Aug 1–22 (transplant) |
| Eggplant | Dec 30–Jan 13 | Mar 24–Apr 7 (transplant) | Aug 1–22 (transplant) |
| Tomatillo | Jan 13–27 | Mar 17–31 (transplant) | – |
| Lettuce | Jan 13–27 | Feb 17–Mar 10 (transplant) Feb 10–Mar 24 (sow outdoors) | Sep 26–Oct 17 (transplant) Sep 12–Oct 10 (sowing) |
| Spinach | – | Jan 27–Feb 17 (sow outdoors) | Sep 26–Oct 17 (sowing) |
| Kale | Jan 13–27 | Feb 10–24 (transplant) Feb 10–24 (sow outdoors) | Aug 29–Sep 26 (transplant) Aug 15–Sep 12 (sowing) |
| Collards | Jan 13–27 | Feb 10–Mar 10 (transplant) Feb 10–Mar 10 (sow outdoors) | Aug 29–Sep 26 (transplant) Aug 15–Sep 12 (sowing) |
| Broccoli | Dec 30–Jan 13 | Feb 10–24 (transplant) | Aug 15–Sep 12 (transplant) |
| Cabbage | Dec 30–Jan 13 | Feb 10–24 (transplant) | Aug 15–Sep 12 (transplant) |
| Cauliflower | Dec 30–Jan 13 | Feb 24–Mar 10 (transplant) | Aug 15–Sep 12 (transplant) |
| Brussels sprouts | Dec 16–30 | Feb 10–24 (transplant) | Aug 1–22 (transplant) |
| Kohlrabi | Jan 13–27 | Feb 10–24 (transplant) Feb 10–24 (sow outdoors) | Sep 12–26 (sowing) |
| Bok choy / Asian greens | – | Feb 10–24 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Arugula | – | Feb 10–Mar 10 (sow outdoors) | Sep 26–Oct 24 (sowing) |
| Mustard greens | – | Feb 10–Mar 3 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Swiss chard | Jan 27–Feb 10 | Feb 24–Mar 17 (transplant) Feb 24–Mar 24 (sow outdoors) | Sep 12–26 (sowing) |
| Beet | – | Feb 10–Mar 10 (sow outdoors) | Sep 12–26 (sowing) |
| Carrot | – | Feb 17–Mar 17 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Radish | – | Feb 3–Mar 17 (sow outdoors) | Oct 10–24 (sowing) |
| Turnip | – | Feb 10–Mar 3 (sow outdoors) | Sep 12–26 (sowing) |
| Parsnip | – | Feb 17–Mar 10 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 13–Feb 10 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Onion (bulbing) | Dec 16–30 | Jan 27–Feb 10 (transplant) | – |
| Green onion / scallion | – | Jan 27–Feb 24 (sow outdoors) | Sep 12–26 (sowing) |
| Leek | Dec 16–30 | Feb 10–24 (transplant) | – |
| Garlic | – | – | Oct 10–Nov 7 (sowing) |
| Shallot | – | Jan 27–Feb 10 (transplant) | Oct 10–Nov 7 (sowing) |
| Potato | – | Feb 10–24 (transplant) | Aug 1–15 (transplant) |
| Sweet potato | – | Mar 31–Apr 14 (transplant) | – |
| Sweet corn | – | Mar 17–31 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 17–31 (sow outdoors) | Aug 29–Sep 12 (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) | Aug 29–Sep 12 (sowing) |
| Summer squash / zucchini | Feb 10–17 | Mar 17–31 (transplant) Mar 17–31 (sow outdoors) | Aug 29–Sep 12 (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) | Sep 26–Oct 10 (sowing) |
| Parsley | Dec 30–Jan 13 | Feb 24–Mar 10 (transplant) Feb 17–Mar 10 (sow outdoors) | – |
| Dill | – | Mar 10–24 (sow outdoors) | Sep 26–Oct 10 (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 12–Oct 10 (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 10 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Poplarville EXP STN, MS (NOAA GHCN-Daily ID USC00227128), elevation 313 ft, 1.9 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Bogalusa, LA | 17 mi | Mar 2 | Nov 23 |
| Picayune, MS | 21 mi | Mar 9 | Nov 18 |
| Wiggins, MS | 27 mi | Mar 14 | Nov 18 |
The average last-frost dates of these stations span 12 days, a rough guide to local variation. See data sources & methods.
Frost questions for 39470
When is the last frost in 39470?
The average (50% chance) last spring freeze of 32°F for ZIP 39470 is March 10. For a more cautious planting date, use April 1, when only 1 year in 10 still sees a later freeze.
When is the first frost in 39470?
The average first fall freeze is November 21. In 1 year in 10 it comes by November 2.
What hardiness zone is 39470?
ZIP 39470 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 39470 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
39426 Hide-A-Way Lake 39455 Lumberton 70426 Angie 39466 Picayune 70427 Bogalusa 70463 Sun 39478 39475 Purvis
Other ZIP codes in Pearl River County
39426 39466 All Pearl River County frost dates · Mississippi frost dates
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