Fall in zone 9aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 39466 (Picayune, 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, Picayune, MS (5 miles away).
- Average last spring frostMar 950% chance of a 32°F freeze after this date
- Average first fall frostNov 1850% chance of a 32°F freeze by this date
- Growing season (frost-free)255 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 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 (52 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 (52 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 39466 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 24 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
- Arugula: fall sowing Sep 23–Oct 21
- Radish: fall sowing Oct 7–21
- Garlic: fall sowing Oct 7–Nov 4
- Shallot: fall sowing Oct 7–Nov 4
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 18: 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 17 |
| 50% (the "average" last frost) | Mar 9 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 31 |
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 3 |
| 50% (the "average" first frost) | Nov 18 |
| 90% (late: most years have frozen by now) | Dec 11 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 26 | Nov 7 |
| 32°F (freeze) | Mar 9 | Nov 18 |
| 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 39466
Dates count from your average last spring frost (Mar 9) and first fall frost (Nov 18). 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 12–26 | Mar 16–30 (transplant) | Jul 22–Aug 19 (transplant) |
| Pepper (sweet and hot) | Dec 29–Jan 12 | Mar 23–Apr 6 (transplant) | Jul 29–Aug 19 (transplant) |
| Eggplant | Dec 29–Jan 12 | Mar 23–Apr 6 (transplant) | Jul 29–Aug 19 (transplant) |
| Tomatillo | Jan 12–26 | Mar 16–30 (transplant) | – |
| Lettuce | Jan 12–26 | Feb 16–Mar 9 (transplant) Feb 9–Mar 23 (sow outdoors) | Sep 23–Oct 14 (transplant) Sep 9–Oct 7 (sowing) |
| Spinach | – | Jan 26–Feb 16 (sow outdoors) | Sep 23–Oct 14 (sowing) |
| Kale | Jan 12–26 | Feb 9–23 (transplant) Feb 9–23 (sow outdoors) | Aug 26–Sep 23 (transplant) Aug 12–Sep 9 (sowing) |
| Collards | Jan 12–26 | Feb 9–Mar 9 (transplant) Feb 9–Mar 9 (sow outdoors) | Aug 26–Sep 23 (transplant) Aug 12–Sep 9 (sowing) |
| Broccoli | Dec 29–Jan 12 | Feb 9–23 (transplant) | Aug 12–Sep 9 (transplant) |
| Cabbage | Dec 29–Jan 12 | Feb 9–23 (transplant) | Aug 12–Sep 9 (transplant) |
| Cauliflower | Dec 29–Jan 12 | Feb 23–Mar 9 (transplant) | Aug 12–Sep 9 (transplant) |
| Brussels sprouts | Dec 15–29 | Feb 9–23 (transplant) | Jul 29–Aug 19 (transplant) |
| Kohlrabi | Jan 12–26 | Feb 9–23 (transplant) Feb 9–23 (sow outdoors) | Sep 9–23 (sowing) |
| Bok choy / Asian greens | – | Feb 9–23 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Arugula | – | Feb 9–Mar 9 (sow outdoors) | Sep 23–Oct 21 (sowing) |
| Mustard greens | – | Feb 9–Mar 2 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Swiss chard | Jan 26–Feb 9 | Feb 23–Mar 16 (transplant) Feb 23–Mar 23 (sow outdoors) | Sep 9–23 (sowing) |
| Beet | – | Feb 9–Mar 9 (sow outdoors) | Sep 9–23 (sowing) |
| Carrot | – | Feb 16–Mar 16 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Radish | – | Feb 2–Mar 16 (sow outdoors) | Oct 7–21 (sowing) |
| Turnip | – | Feb 9–Mar 2 (sow outdoors) | Sep 9–23 (sowing) |
| Parsnip | – | Feb 16–Mar 9 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 12–Feb 9 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Onion (bulbing) | Dec 15–29 | Jan 26–Feb 9 (transplant) | – |
| Green onion / scallion | – | Jan 26–Feb 23 (sow outdoors) | Sep 9–23 (sowing) |
| Leek | Dec 15–29 | Feb 9–23 (transplant) | – |
| Garlic | – | – | Oct 7–Nov 4 (sowing) |
| Shallot | – | Jan 26–Feb 9 (transplant) | Oct 7–Nov 4 (sowing) |
| Potato | – | Feb 9–23 (transplant) | Jul 29–Aug 12 (transplant) |
| Sweet potato | – | Mar 30–Apr 13 (transplant) | – |
| Sweet corn | – | Mar 16–30 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 16–30 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Bean, pole | – | Mar 16–30 (sow outdoors) | – |
| Lima bean | – | Mar 23–Apr 6 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 30–Apr 20 (sow outdoors) | – |
| Cucumber | Feb 9–16 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Summer squash / zucchini | Feb 9–16 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Winter squash | Feb 9–16 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | – |
| Pumpkin | – | Mar 16–30 (sow outdoors) | – |
| Watermelon | Feb 9–16 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 9–16 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Okra | Jan 26–Feb 9 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Celery | Dec 15–29 | Mar 16–23 (transplant) | – |
| Basil | Jan 26–Feb 9 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | – |
| Cilantro | – | Feb 23–Mar 23 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Parsley | Dec 29–Jan 12 | Feb 23–Mar 9 (transplant) Feb 16–Mar 9 (sow outdoors) | – |
| Dill | – | Mar 9–23 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Sunflower | – | Mar 9–23 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 9–23 (transplant) | – |
| Rhubarb (crowns) | – | Feb 9–23 (transplant) | – |
| Strawberry (plants) | – | Feb 9–23 (transplant) | Sep 9–Oct 7 (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 9 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Picayune, MS (NOAA GHCN-Daily ID USC00226921), elevation 64 ft, 5.2 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Bay St Louis Nasa, MS | 11 mi | Mar 6 | Nov 19 |
| Slidell AP, LA | 18 mi | Mar 3 | Nov 21 |
| Slidell, LA | 21 mi | Feb 24 | Dec 1 |
The average last-frost dates of these stations span 16 days, a rough guide to local variation. See data sources & methods.
Frost questions for 39466
When is the last frost in 39466?
The average (50% chance) last spring freeze of 32°F for ZIP 39466 is March 9. For a more cautious planting date, use March 31, when only 1 year in 10 still sees a later freeze.
When is the first frost in 39466?
The average first fall freeze is November 18. In 1 year in 10 it comes by November 3.
What hardiness zone is 39466?
ZIP 39466 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 39466 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 39529 70452 Pearl River 39556 Kiln 70464 39525 Diamondhead 70463 Sun 70420 Abita Springs
Other ZIP codes in Pearl River County
39426 39470 All Pearl River County frost dates · Mississippi frost dates
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