Fall in zone 8aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 35671 (Decatur, AL)
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, Decatur Pryor Fld, AL (1 miles away).
- Average last spring frostMar 2750% chance of a 32°F freeze after this date
- Average first fall frostNov 350% chance of a 32°F freeze by this date
- Growing season (frost-free)221 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
64°F 55°F or warmer
24-hour average · latest 60°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Stanley Farm (22 mi), AAMU-JTG (24 mi), Bragg Farm (25 mi).
4-inch depth
66°F 55°F or warmer
24-hour average · latest 64°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Stanley Farm (22 mi), AAMU-JTG (24 mi), Bragg Farm (25 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 35671 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 66°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 12 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 3: 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) | Mar 8 |
| 50% (the "average" last frost) | Mar 27 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 10 |
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 22 |
| 50% (the "average" first frost) | Nov 3 |
| 90% (late: most years have frozen by now) | Nov 20 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 5 | Oct 25 |
| 32°F (freeze) | Mar 27 | Nov 3 |
| 28°F (hard freeze) | Mar 14 | Nov 15 |
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 35671
Dates count from your average last spring frost (Mar 27) and first fall frost (Nov 3). 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 30–Feb 13 | Apr 3–17 (transplant) | Jul 7–Aug 4 (transplant) |
| Pepper (sweet and hot) | Jan 16–30 | Apr 10–24 (transplant) | Jul 14–Aug 4 (transplant) |
| Eggplant | Jan 16–30 | Apr 10–24 (transplant) | Jul 14–Aug 4 (transplant) |
| Tomatillo | Jan 30–Feb 13 | Apr 3–17 (transplant) | – |
| Lettuce | Jan 30–Feb 13 | Mar 6–27 (transplant) Feb 27–Apr 10 (sow outdoors) | Sep 8–29 (transplant) Aug 25–Sep 22 (sowing) |
| Spinach | – | Feb 13–Mar 6 (sow outdoors) | Sep 8–29 (sowing) |
| Kale | Jan 30–Feb 13 | Feb 27–Mar 13 (transplant) Feb 27–Mar 13 (sow outdoors) | Aug 11–Sep 8 (transplant) Jul 28–Aug 25 (sowing) |
| Collards | Jan 30–Feb 13 | Feb 27–Mar 27 (transplant) Feb 27–Mar 27 (sow outdoors) | Aug 11–Sep 8 (transplant) Jul 28–Aug 25 (sowing) |
| Broccoli | Jan 16–30 | Feb 27–Mar 13 (transplant) | Jul 28–Aug 25 (transplant) |
| Cabbage | Jan 16–30 | Feb 27–Mar 13 (transplant) | Jul 28–Aug 25 (transplant) |
| Cauliflower | Jan 16–30 | Mar 13–27 (transplant) | Jul 28–Aug 25 (transplant) |
| Brussels sprouts | Jan 2–16 | Feb 27–Mar 13 (transplant) | Jul 14–Aug 4 (transplant) |
| Kohlrabi | Jan 30–Feb 13 | Feb 27–Mar 13 (transplant) Feb 27–Mar 13 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Bok choy / Asian greens | – | Feb 27–Mar 13 (sow outdoors) | Sep 8–22 (sowing) |
| Arugula | – | Feb 27–Mar 27 (sow outdoors) | Sep 8–Oct 6 (sowing) |
| Mustard greens | – | Feb 27–Mar 20 (sow outdoors) | Sep 8–22 (sowing) |
| Swiss chard | Feb 13–27 | Mar 13–Apr 3 (transplant) Mar 13–Apr 10 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Beet | – | Feb 27–Mar 27 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Carrot | – | Mar 6–Apr 3 (sow outdoors) | Aug 11–25 (sowing) |
| Radish | – | Feb 20–Apr 3 (sow outdoors) | Sep 22–Oct 6 (sowing) |
| Turnip | – | Feb 27–Mar 20 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Parsnip | – | Mar 6–27 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 30–Feb 27 (sow outdoors) | Aug 11–25 (sowing) |
| Onion (bulbing) | Jan 2–16 | Feb 13–27 (transplant) | – |
| Green onion / scallion | – | Feb 13–Mar 13 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Leek | Jan 2–16 | Feb 27–Mar 13 (transplant) | – |
| Garlic | – | – | Sep 22–Oct 20 (sowing) |
| Shallot | – | Feb 13–27 (transplant) | Sep 22–Oct 20 (sowing) |
| Potato | – | Feb 27–Mar 13 (transplant) | Jul 14–28 (transplant) |
| Sweet potato | – | Apr 17–May 1 (transplant) | – |
| Sweet corn | – | Apr 3–17 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 3–17 (sow outdoors) | Aug 11–25 (sowing) |
| Bean, pole | – | Apr 3–17 (sow outdoors) | – |
| Lima bean | – | Apr 10–24 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 17–May 8 (sow outdoors) | – |
| Cucumber | Feb 27–Mar 6 | Apr 3–17 (transplant) Apr 3–17 (sow outdoors) | Aug 11–25 (sowing) |
| Summer squash / zucchini | Feb 27–Mar 6 | Apr 3–17 (transplant) Apr 3–17 (sow outdoors) | Aug 11–25 (sowing) |
| Winter squash | Feb 27–Mar 6 | Apr 3–17 (transplant) Apr 3–17 (sow outdoors) | – |
| Pumpkin | – | Apr 3–17 (sow outdoors) | – |
| Watermelon | Feb 27–Mar 6 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 27–Mar 6 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Okra | Feb 13–27 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Celery | Jan 2–16 | Apr 3–10 (transplant) | – |
| Basil | Feb 13–27 | Apr 3–17 (transplant) Apr 3–17 (sow outdoors) | – |
| Cilantro | – | Mar 13–Apr 10 (sow outdoors) | Sep 8–22 (sowing) |
| Parsley | Jan 16–30 | Mar 13–27 (transplant) Mar 6–27 (sow outdoors) | – |
| Dill | – | Mar 27–Apr 10 (sow outdoors) | Sep 8–22 (sowing) |
| Sunflower | – | Mar 27–Apr 10 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 27–Mar 13 (transplant) | – |
| Rhubarb (crowns) | – | Feb 27–Mar 13 (transplant) | – |
| Strawberry (plants) | – | Feb 27–Mar 13 (transplant) | Aug 25–Sep 22 (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.
Where these numbers come from
Station: Decatur Pryor Fld, AL (NOAA GHCN-Daily ID USW00053852), elevation 592 ft, 1.2 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Belle Mina 2 N, AL | 4 mi | Mar 31 | Nov 1 |
| Decatur 4SE, AL | 7 mi | Mar 26 | Nov 7 |
| Athens, AL | 7 mi | Mar 20 | Nov 12 |
The average last-frost dates of these stations span 11 days, a rough guide to local variation. See data sources & methods.
Frost questions for 35671
When is the last frost in 35671?
The average (50% chance) last spring freeze of 32°F for ZIP 35671 is March 27. For a more cautious planting date, use April 10, when only 1 year in 10 still sees a later freeze.
When is the first frost in 35671?
The average first fall freeze is November 3. In 1 year in 10 it comes by October 22.
What hardiness zone is 35671?
ZIP 35671 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 35671 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
35615 35649 Mooresville 35601 Decatur 35756 Huntsville 35603 Decatur 35611 Athens 35613 Athens 35824 Huntsville
Other ZIP codes in Limestone County
35611 35613 35614 35615 35620 35647 35649 35739 35756 All Limestone County frost dates · Alabama 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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