Fall in zone 8bPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 31210 (Macon-Bibb County, GA)
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, Macon Middle Ga Rgnl AP, GA (16 miles away).
- Average last spring frostMar 2150% chance of a 32°F freeze after this date
- Average first fall frostNov 1050% chance of a 32°F freeze by this date
- Growing season (frost-free)235 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
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
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 31210 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring mid-February to early March; fall September to early October.
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 6 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 10: 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 28 |
| 50% (the "average" last frost) | Mar 21 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 7 |
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 29 |
| 50% (the "average" first frost) | Nov 10 |
| 90% (late: most years have frozen by now) | Nov 29 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 3 | Nov 1 |
| 32°F (freeze) | Mar 21 | Nov 10 |
| 28°F (hard freeze) | Mar 3 | Nov 24 |
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 31210
Dates count from your average last spring frost (Mar 21) and first fall frost (Nov 10). 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 24–Feb 7 | Mar 28–Apr 11 (transplant) | Jul 14–Aug 11 (transplant) |
| Pepper (sweet and hot) | Jan 10–24 | Apr 4–18 (transplant) | Jul 21–Aug 11 (transplant) |
| Eggplant | Jan 10–24 | Apr 4–18 (transplant) | Jul 21–Aug 11 (transplant) |
| Tomatillo | Jan 24–Feb 7 | Mar 28–Apr 11 (transplant) | – |
| Lettuce | Jan 24–Feb 7 | Feb 28–Mar 21 (transplant) Feb 21–Apr 4 (sow outdoors) | Sep 15–Oct 6 (transplant) Sep 1–29 (sowing) |
| Spinach | – | Feb 7–28 (sow outdoors) | Sep 15–Oct 6 (sowing) |
| Kale | Jan 24–Feb 7 | Feb 21–Mar 7 (transplant) Feb 21–Mar 7 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Collards | Jan 24–Feb 7 | Feb 21–Mar 21 (transplant) Feb 21–Mar 21 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Broccoli | Jan 10–24 | Feb 21–Mar 7 (transplant) | Aug 4–Sep 1 (transplant) |
| Cabbage | Jan 10–24 | Feb 21–Mar 7 (transplant) | Aug 4–Sep 1 (transplant) |
| Cauliflower | Jan 10–24 | Mar 7–21 (transplant) | Aug 4–Sep 1 (transplant) |
| Brussels sprouts | Dec 27–Jan 10 | Feb 21–Mar 7 (transplant) | Jul 21–Aug 11 (transplant) |
| Kohlrabi | Jan 24–Feb 7 | Feb 21–Mar 7 (transplant) Feb 21–Mar 7 (sow outdoors) | Sep 1–15 (sowing) |
| Bok choy / Asian greens | – | Feb 21–Mar 7 (sow outdoors) | Sep 15–29 (sowing) |
| Arugula | – | Feb 21–Mar 21 (sow outdoors) | Sep 15–Oct 13 (sowing) |
| Mustard greens | – | Feb 21–Mar 14 (sow outdoors) | Sep 15–29 (sowing) |
| Swiss chard | Feb 7–21 | Mar 7–28 (transplant) Mar 7–Apr 4 (sow outdoors) | Sep 1–15 (sowing) |
| Beet | – | Feb 21–Mar 21 (sow outdoors) | Sep 1–15 (sowing) |
| Carrot | – | Feb 28–Mar 28 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Radish | – | Feb 14–Mar 28 (sow outdoors) | Sep 29–Oct 13 (sowing) |
| Turnip | – | Feb 21–Mar 14 (sow outdoors) | Sep 1–15 (sowing) |
| Parsnip | – | Feb 28–Mar 21 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 24–Feb 21 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Onion (bulbing) | Dec 27–Jan 10 | Feb 7–21 (transplant) | – |
| Green onion / scallion | – | Feb 7–Mar 7 (sow outdoors) | Sep 1–15 (sowing) |
| Leek | Dec 27–Jan 10 | Feb 21–Mar 7 (transplant) | – |
| Garlic | – | – | Sep 29–Oct 27 (sowing) |
| Shallot | – | Feb 7–21 (transplant) | Sep 29–Oct 27 (sowing) |
| Potato | – | Feb 21–Mar 7 (transplant) | Jul 21–Aug 4 (transplant) |
| Sweet potato | – | Apr 11–25 (transplant) | – |
| Sweet corn | – | Mar 28–Apr 11 (sow outdoors) | – |
| Bean, bush (snap) | – | Mar 28–Apr 11 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Bean, pole | – | Mar 28–Apr 11 (sow outdoors) | – |
| Lima bean | – | Apr 4–18 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 11–May 2 (sow outdoors) | – |
| Cucumber | Feb 21–28 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Summer squash / zucchini | Feb 21–28 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Winter squash | Feb 21–28 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | – |
| Pumpkin | – | Mar 28–Apr 11 (sow outdoors) | – |
| Watermelon | Feb 21–28 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 21–28 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | – |
| Okra | Feb 7–21 | Apr 4–18 (transplant) Apr 4–18 (sow outdoors) | – |
| Celery | Dec 27–Jan 10 | Mar 28–Apr 4 (transplant) | – |
| Basil | Feb 7–21 | Mar 28–Apr 11 (transplant) Mar 28–Apr 11 (sow outdoors) | – |
| Cilantro | – | Mar 7–Apr 4 (sow outdoors) | Sep 15–29 (sowing) |
| Parsley | Jan 10–24 | Mar 7–21 (transplant) Feb 28–Mar 21 (sow outdoors) | – |
| Dill | – | Mar 21–Apr 4 (sow outdoors) | Sep 15–29 (sowing) |
| Sunflower | – | Mar 21–Apr 4 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 21–Mar 7 (transplant) | – |
| Rhubarb (crowns) | – | Feb 21–Mar 7 (transplant) | – |
| Strawberry (plants) | – | Feb 21–Mar 7 (transplant) | Sep 1–29 (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
Georgia has a university or garden plant program: Georgia Gold Medal Plants (ended 2017). Plant frost-tender annuals after March 21 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Macon Middle Ga Rgnl AP, GA (NOAA GHCN-Daily ID USW00003813), elevation 343 ft, 16.2 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Warner Robins, GA | 22 mi | Mar 11 | Nov 19 |
| The Rock Rch, GA | 29 mi | Mar 18 | Nov 14 |
| Irwinton 4 WNW, GA | 29 mi | Mar 12 | Nov 19 |
The average last-frost dates of these stations span 10 days, a rough guide to local variation. See data sources & methods.
Frost questions for 31210
When is the last frost in 31210?
The average (50% chance) last spring freeze of 32°F for ZIP 31210 is March 21. For a more cautious planting date, use April 7, when only 1 year in 10 still sees a later freeze.
When is the first frost in 31210?
The average first fall freeze is November 10. In 1 year in 10 it comes by October 29.
What hardiness zone is 31210?
ZIP 31210 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 31210 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
31220 Macon-Bibb County 31004 Bolingbroke 31204 Macon-Bibb County 31213 Macon-Bibb County 31207 Macon-Bibb County 31211 Macon-Bibb County 31206 Macon-Bibb County 31201 Macon-Bibb County
Other ZIP codes in Bibb County
31052 31201 31204 31206 31207 31213 31216 31220 All Bibb County frost dates · Georgia 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.