Fall in zone 8aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 38637 (Horn Lake, 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, Memphis Intl AP, TN (8 miles away).
- Average last spring frostMar 1650% chance of a 32°F freeze after this date
- Average first fall frostNov 1650% chance of a 32°F freeze by this date
- Growing season (frost-free)244 daysmedian, 32°F threshold
- USDA hardiness zone8a10 to 15°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
67°F 55°F or warmer
24-hour average · latest 63°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Tunica (28 mi), Uapb-Earle (32 mi), Holly Springs 4 N (36 mi).
4-inch depth
68°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 Tunica (28 mi), Uapb-Earle (32 mi), Holly Springs 4 N (36 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 38637 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 68°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 May 1 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 21–Oct 19
- Radish: fall sowing Oct 5–19
- Garlic: fall sowing Oct 5–Nov 2
- Shallot: fall sowing Oct 5–Nov 2
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 16: 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 27 |
| 50% (the "average" last frost) | Mar 16 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 4 |
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 16 |
| 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 29 | Nov 5 |
| 32°F (freeze) | Mar 16 | Nov 16 |
| 28°F (hard freeze) | Mar 4 | Nov 28 |
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 38637
Dates count from your average last spring frost (Mar 16) and first fall frost (Nov 16). 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 19–Feb 2 | Mar 23–Apr 6 (transplant) | Jul 20–Aug 17 (transplant) |
| Pepper (sweet and hot) | Jan 5–19 | Mar 30–Apr 13 (transplant) | Jul 27–Aug 17 (transplant) |
| Eggplant | Jan 5–19 | Mar 30–Apr 13 (transplant) | Jul 27–Aug 17 (transplant) |
| Tomatillo | Jan 19–Feb 2 | Mar 23–Apr 6 (transplant) | – |
| Lettuce | Jan 19–Feb 2 | Feb 23–Mar 16 (transplant) Feb 16–Mar 30 (sow outdoors) | Sep 21–Oct 12 (transplant) Sep 7–Oct 5 (sowing) |
| Spinach | – | Feb 2–23 (sow outdoors) | Sep 21–Oct 12 (sowing) |
| Kale | Jan 19–Feb 2 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Aug 24–Sep 21 (transplant) Aug 10–Sep 7 (sowing) |
| Collards | Jan 19–Feb 2 | Feb 16–Mar 16 (transplant) Feb 16–Mar 16 (sow outdoors) | Aug 24–Sep 21 (transplant) Aug 10–Sep 7 (sowing) |
| Broccoli | Jan 5–19 | Feb 16–Mar 2 (transplant) | Aug 10–Sep 7 (transplant) |
| Cabbage | Jan 5–19 | Feb 16–Mar 2 (transplant) | Aug 10–Sep 7 (transplant) |
| Cauliflower | Jan 5–19 | Mar 2–16 (transplant) | Aug 10–Sep 7 (transplant) |
| Brussels sprouts | Dec 22–Jan 5 | Feb 16–Mar 2 (transplant) | Jul 27–Aug 17 (transplant) |
| Kohlrabi | Jan 19–Feb 2 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Sep 7–21 (sowing) |
| Bok choy / Asian greens | – | Feb 16–Mar 2 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Arugula | – | Feb 16–Mar 16 (sow outdoors) | Sep 21–Oct 19 (sowing) |
| Mustard greens | – | Feb 16–Mar 9 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Swiss chard | Feb 2–16 | Mar 2–23 (transplant) Mar 2–30 (sow outdoors) | Sep 7–21 (sowing) |
| Beet | – | Feb 16–Mar 16 (sow outdoors) | Sep 7–21 (sowing) |
| Carrot | – | Feb 23–Mar 23 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Radish | – | Feb 9–Mar 23 (sow outdoors) | Oct 5–19 (sowing) |
| Turnip | – | Feb 16–Mar 9 (sow outdoors) | Sep 7–21 (sowing) |
| Parsnip | – | Feb 23–Mar 16 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 19–Feb 16 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Onion (bulbing) | Dec 22–Jan 5 | Feb 2–16 (transplant) | – |
| Green onion / scallion | – | Feb 2–Mar 2 (sow outdoors) | Sep 7–21 (sowing) |
| Leek | Dec 22–Jan 5 | Feb 16–Mar 2 (transplant) | – |
| Garlic | – | – | Oct 5–Nov 2 (sowing) |
| Shallot | – | Feb 2–16 (transplant) | Oct 5–Nov 2 (sowing) |
| Potato | – | Feb 16–Mar 2 (transplant) | Jul 27–Aug 10 (transplant) |
| Sweet potato | – | Apr 6–20 (transplant) | – |
| Sweet corn | – | Mar 23–Apr 6 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 23–Apr 6 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Bean, pole | – | Mar 23–Apr 6 (sow outdoors) | – |
| Lima bean | – | Mar 30–Apr 13 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 6–27 (sow outdoors) | – |
| Cucumber | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Summer squash / zucchini | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Winter squash | Feb 16–23 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Pumpkin | – | Mar 23–Apr 6 (sow outdoors) | – |
| Watermelon | Feb 16–23 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 16–23 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Okra | Feb 2–16 | Mar 30–Apr 13 (transplant) Mar 30–Apr 13 (sow outdoors) | – |
| Celery | Dec 22–Jan 5 | Mar 23–30 (transplant) | – |
| Basil | Feb 2–16 | Mar 23–Apr 6 (transplant) Mar 23–Apr 6 (sow outdoors) | – |
| Cilantro | – | Mar 2–30 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Parsley | Jan 5–19 | Mar 2–16 (transplant) Feb 23–Mar 16 (sow outdoors) | – |
| Dill | – | Mar 16–30 (sow outdoors) | Sep 21–Oct 5 (sowing) |
| Sunflower | – | Mar 16–30 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 16–Mar 2 (transplant) | – |
| Rhubarb (crowns) | – | Feb 16–Mar 2 (transplant) | – |
| Strawberry (plants) | – | Feb 16–Mar 2 (transplant) | Sep 7–Oct 5 (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 16 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Memphis Intl AP, TN (NOAA GHCN-Daily ID USW00013893), elevation 254 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%) |
|---|---|---|---|
| Hernando, MS | 10 mi | Mar 28 | Nov 5 |
| Olive Branch, MS | 12 mi | Mar 26 | Nov 6 |
| W Memphis, AR | 14 mi | Mar 19 | Nov 10 |
The average last-frost dates of these stations span 12 days, a rough guide to local variation. See data sources & methods.
Frost questions for 38637
When is the last frost in 38637?
The average (50% chance) last spring freeze of 32°F for ZIP 38637 is March 16. For a more cautious planting date, use April 4, when only 1 year in 10 still sees a later freeze.
When is the first frost in 38637?
The average first fall freeze is November 16. In 1 year in 10 it comes by November 2.
What hardiness zone is 38637?
ZIP 38637 is in USDA zone 8a (10 to 15°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 38637 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
38671 Southaven 38651 Hernando 38680 Walls 38116 Memphis 38672 Southaven 38641 Walls 38109 Memphis 38131 Memphis
Other ZIP codes in DeSoto County
38632 38641 38651 38654 38671 38672 38680 All DeSoto County frost dates · Mississippi frost dates
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- 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.