Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 39475 (Purvis, 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, Hattiesburg 5SW, MS (8 miles away).
- Average last spring frostMar 750% chance of a 32°F freeze after this date
- Average first fall frostNov 2350% chance of a 32°F freeze by this date
- Growing season (frost-free)261 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
72°F 55°F or warmer
24-hour average · latest 65°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Tnc Fort Bayou (62 mi).
4-inch depth
73°F 55°F or warmer
24-hour average · latest 69°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Tnc Fort Bayou (62 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 39475 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 73°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 22 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 28–Oct 19
- Spinach: fall sowing Sep 28–Oct 19
- Arugula: fall sowing Sep 28–Oct 26
- Radish: fall sowing Oct 12–26
- Garlic: fall sowing Oct 12–Nov 9
- Shallot: fall sowing Oct 12–Nov 9
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 23: 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 7 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 26 |
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 5 |
| 50% (the "average" first frost) | Nov 23 |
| 90% (late: most years have frozen by now) | Dec 14 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 23 | Nov 11 |
| 32°F (freeze) | Mar 7 | Nov 23 |
| 28°F (hard freeze) | Feb 20 | Dec 4 |
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 39475
Dates count from your average last spring frost (Mar 7) and first fall frost (Nov 23). 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 10–24 | Mar 14–28 (transplant) | Jul 27–Aug 24 (transplant) |
| Pepper (sweet and hot) | Dec 27–Jan 10 | Mar 21–Apr 4 (transplant) | Aug 3–24 (transplant) |
| Eggplant | Dec 27–Jan 10 | Mar 21–Apr 4 (transplant) | Aug 3–24 (transplant) |
| Tomatillo | Jan 10–24 | Mar 14–28 (transplant) | – |
| Lettuce | Jan 10–24 | Feb 14–Mar 7 (transplant) Feb 7–Mar 21 (sow outdoors) | Sep 28–Oct 19 (transplant) Sep 14–Oct 12 (sowing) |
| Spinach | – | Jan 24–Feb 14 (sow outdoors) | Sep 28–Oct 19 (sowing) |
| Kale | Jan 10–24 | Feb 7–21 (transplant) Feb 7–21 (sow outdoors) | Aug 31–Sep 28 (transplant) Aug 17–Sep 14 (sowing) |
| Collards | Jan 10–24 | Feb 7–Mar 7 (transplant) Feb 7–Mar 7 (sow outdoors) | Aug 31–Sep 28 (transplant) Aug 17–Sep 14 (sowing) |
| Broccoli | Dec 27–Jan 10 | Feb 7–21 (transplant) | Aug 17–Sep 14 (transplant) |
| Cabbage | Dec 27–Jan 10 | Feb 7–21 (transplant) | Aug 17–Sep 14 (transplant) |
| Cauliflower | Dec 27–Jan 10 | Feb 21–Mar 7 (transplant) | Aug 17–Sep 14 (transplant) |
| Brussels sprouts | Dec 13–27 | Feb 7–21 (transplant) | Aug 3–24 (transplant) |
| Kohlrabi | Jan 10–24 | Feb 7–21 (transplant) Feb 7–21 (sow outdoors) | Sep 14–28 (sowing) |
| Bok choy / Asian greens | – | Feb 7–21 (sow outdoors) | Sep 28–Oct 12 (sowing) |
| Arugula | – | Feb 7–Mar 7 (sow outdoors) | Sep 28–Oct 26 (sowing) |
| Mustard greens | – | Feb 7–28 (sow outdoors) | Sep 28–Oct 12 (sowing) |
| Swiss chard | Jan 24–Feb 7 | Feb 21–Mar 14 (transplant) Feb 21–Mar 21 (sow outdoors) | Sep 14–28 (sowing) |
| Beet | – | Feb 7–Mar 7 (sow outdoors) | Sep 14–28 (sowing) |
| Carrot | – | Feb 14–Mar 14 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Radish | – | Jan 31–Mar 14 (sow outdoors) | Oct 12–26 (sowing) |
| Turnip | – | Feb 7–28 (sow outdoors) | Sep 14–28 (sowing) |
| Parsnip | – | Feb 14–Mar 7 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 10–Feb 7 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Onion (bulbing) | Dec 13–27 | Jan 24–Feb 7 (transplant) | – |
| Green onion / scallion | – | Jan 24–Feb 21 (sow outdoors) | Sep 14–28 (sowing) |
| Leek | Dec 13–27 | Feb 7–21 (transplant) | – |
| Garlic | – | – | Oct 12–Nov 9 (sowing) |
| Shallot | – | Jan 24–Feb 7 (transplant) | Oct 12–Nov 9 (sowing) |
| Potato | – | Feb 7–21 (transplant) | Aug 3–17 (transplant) |
| Sweet potato | – | Mar 28–Apr 11 (transplant) | – |
| Sweet corn | – | Mar 14–28 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 14–28 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Bean, pole | – | Mar 14–28 (sow outdoors) | – |
| Lima bean | – | Mar 21–Apr 4 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 28–Apr 18 (sow outdoors) | – |
| Cucumber | Feb 7–14 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Summer squash / zucchini | Feb 7–14 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | Aug 31–Sep 14 (sowing) |
| Winter squash | Feb 7–14 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | – |
| Pumpkin | – | Mar 14–28 (sow outdoors) | – |
| Watermelon | Feb 7–14 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 7–14 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | – |
| Okra | Jan 24–Feb 7 | Mar 21–Apr 4 (transplant) Mar 21–Apr 4 (sow outdoors) | – |
| Celery | Dec 13–27 | Mar 14–21 (transplant) | – |
| Basil | Jan 24–Feb 7 | Mar 14–28 (transplant) Mar 14–28 (sow outdoors) | – |
| Cilantro | – | Feb 21–Mar 21 (sow outdoors) | Sep 28–Oct 12 (sowing) |
| Parsley | Dec 27–Jan 10 | Feb 21–Mar 7 (transplant) Feb 14–Mar 7 (sow outdoors) | – |
| Dill | – | Mar 7–21 (sow outdoors) | Sep 28–Oct 12 (sowing) |
| Sunflower | – | Mar 7–21 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 7–21 (transplant) | – |
| Rhubarb (crowns) | – | Feb 7–21 (transplant) | – |
| Strawberry (plants) | – | Feb 7–21 (transplant) | Sep 14–Oct 12 (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 7 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Hattiesburg 5SW, MS (NOAA GHCN-Daily ID USC00223887), elevation 385 ft, 8.1 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hattiesburg Chain Muni AP, MS | 13 mi | Mar 8 | Nov 15 |
| Poplarville EXP STN, MS | 23 mi | Mar 10 | Nov 21 |
| Columbia, MS | 26 mi | Mar 5 | Nov 19 |
The average last-frost dates of these stations span 5 days, a rough guide to local variation. See data sources & methods.
Frost questions for 39475
When is the last frost in 39475?
The average (50% chance) last spring freeze of 32°F for ZIP 39475 is March 7. For a more cautious planting date, use March 26, when only 1 year in 10 still sees a later freeze.
When is the first frost in 39475?
The average first fall freeze is November 23. In 1 year in 10 it comes by November 5.
What hardiness zone is 39475?
ZIP 39475 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 39475 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
39401 Hattiesburg 39455 Lumberton 39402 Hattiesburg 39406 Hattiesburg 39482 Sumrall 39465 Petal 39425 39462 New Augusta
Other ZIP codes in Lamar County
39402 39455 39482 All Lamar County frost dates · Mississippi frost dates
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- Freeze alerts
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