Fall in zone 8aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 30045 (Gwinnett 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, Winder 4S, GA (12 miles away).
- Average last spring frostApr 350% chance of a 32°F freeze after this date
- Average first fall frostNov 750% chance of a 32°F freeze by this date
- Growing season (frost-free)219 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
70°F 55°F or warmer
24-hour average · latest 66°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Watkinsville #1 (29 mi), Watkinsville 5 SSE (33 mi).
4-inch depth
70°F 55°F or warmer
24-hour average · latest 68°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Watkinsville #1 (29 mi), Watkinsville 5 SSE (33 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 30045 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 70°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 19 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 7: 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 18 |
| 50% (the "average" last frost) | Apr 3 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 17 |
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 27 |
| 50% (the "average" first frost) | Nov 7 |
| 90% (late: most years have frozen by now) | Nov 26 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 15 | Oct 30 |
| 32°F (freeze) | Apr 3 | Nov 7 |
| 28°F (hard freeze) | Mar 22 | Nov 20 |
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 30045
Dates count from your average last spring frost (Apr 3) and first fall frost (Nov 7). 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 | Feb 6–20 | Apr 10–24 (transplant) | Jul 11–Aug 8 (transplant) |
| Pepper (sweet and hot) | Jan 23–Feb 6 | Apr 17–May 1 (transplant) | Jul 18–Aug 8 (transplant) |
| Eggplant | Jan 23–Feb 6 | Apr 17–May 1 (transplant) | Jul 18–Aug 8 (transplant) |
| Tomatillo | Feb 6–20 | Apr 10–24 (transplant) | – |
| Lettuce | Feb 6–20 | Mar 13–Apr 3 (transplant) Mar 6–Apr 17 (sow outdoors) | Sep 12–Oct 3 (transplant) Aug 29–Sep 26 (sowing) |
| Spinach | – | Feb 20–Mar 13 (sow outdoors) | Sep 12–Oct 3 (sowing) |
| Kale | Feb 6–20 | Mar 6–20 (transplant) Mar 6–20 (sow outdoors) | Aug 15–Sep 12 (transplant) Aug 1–29 (sowing) |
| Collards | Feb 6–20 | Mar 6–Apr 3 (transplant) Mar 6–Apr 3 (sow outdoors) | Aug 15–Sep 12 (transplant) Aug 1–29 (sowing) |
| Broccoli | Jan 23–Feb 6 | Mar 6–20 (transplant) | Aug 1–29 (transplant) |
| Cabbage | Jan 23–Feb 6 | Mar 6–20 (transplant) | Aug 1–29 (transplant) |
| Cauliflower | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) | Aug 1–29 (transplant) |
| Brussels sprouts | Jan 9–23 | Mar 6–20 (transplant) | Jul 18–Aug 8 (transplant) |
| Kohlrabi | Feb 6–20 | Mar 6–20 (transplant) Mar 6–20 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Bok choy / Asian greens | – | Mar 6–20 (sow outdoors) | Sep 12–26 (sowing) |
| Arugula | – | Mar 6–Apr 3 (sow outdoors) | Sep 12–Oct 10 (sowing) |
| Mustard greens | – | Mar 6–27 (sow outdoors) | Sep 12–26 (sowing) |
| Swiss chard | Feb 20–Mar 6 | Mar 20–Apr 10 (transplant) Mar 20–Apr 17 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Beet | – | Mar 6–Apr 3 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Carrot | – | Mar 13–Apr 10 (sow outdoors) | Aug 15–29 (sowing) |
| Radish | – | Feb 27–Apr 10 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Turnip | – | Mar 6–27 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Parsnip | – | Mar 13–Apr 3 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 6–Mar 6 (sow outdoors) | Aug 15–29 (sowing) |
| Onion (bulbing) | Jan 9–23 | Feb 20–Mar 6 (transplant) | – |
| Green onion / scallion | – | Feb 20–Mar 20 (sow outdoors) | Aug 29–Sep 12 (sowing) |
| Leek | Jan 9–23 | Mar 6–20 (transplant) | – |
| Garlic | – | – | Sep 26–Oct 24 (sowing) |
| Shallot | – | Feb 20–Mar 6 (transplant) | Sep 26–Oct 24 (sowing) |
| Potato | – | Mar 6–20 (transplant) | Jul 18–Aug 1 (transplant) |
| Sweet potato | – | Apr 24–May 8 (transplant) | – |
| Sweet corn | – | Apr 10–24 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 10–24 (sow outdoors) | Aug 15–29 (sowing) |
| Bean, pole | – | Apr 10–24 (sow outdoors) | – |
| Lima bean | – | Apr 17–May 1 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 24–May 15 (sow outdoors) | – |
| Cucumber | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | Aug 15–29 (sowing) |
| Summer squash / zucchini | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | Aug 15–29 (sowing) |
| Winter squash | Mar 6–13 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Pumpkin | – | Apr 10–24 (sow outdoors) | – |
| Watermelon | Mar 6–13 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 6–13 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Okra | Feb 20–Mar 6 | Apr 17–May 1 (transplant) Apr 17–May 1 (sow outdoors) | – |
| Celery | Jan 9–23 | Apr 10–17 (transplant) | – |
| Basil | Feb 20–Mar 6 | Apr 10–24 (transplant) Apr 10–24 (sow outdoors) | – |
| Cilantro | – | Mar 20–Apr 17 (sow outdoors) | Sep 12–26 (sowing) |
| Parsley | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) Mar 13–Apr 3 (sow outdoors) | – |
| Dill | – | Apr 3–17 (sow outdoors) | Sep 12–26 (sowing) |
| Sunflower | – | Apr 3–17 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 6–20 (transplant) | – |
| Rhubarb (crowns) | – | Mar 6–20 (transplant) | – |
| Strawberry (plants) | – | Mar 6–20 (transplant) | Aug 29–Sep 26 (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 April 3 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Winder 4S, GA (NOAA GHCN-Daily ID USC00099466), elevation 889 ft, 11.6 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Atlanta Peachtree AP, GA | 22 mi | Mar 25 | Nov 9 |
| U Of Ga Plt Sci, GA | 23 mi | Mar 27 | Nov 8 |
| Cumming 2N, GA | 23 mi | Apr 4 | Nov 4 |
The average last-frost dates of these stations span 10 days, a rough guide to local variation. See data sources & methods.
Frost questions for 30045
When is the last frost in 30045?
The average (50% chance) last spring freeze of 32°F for ZIP 30045 is April 3. For a more cautious planting date, use April 17, when only 1 year in 10 still sees a later freeze.
When is the first frost in 30045?
The average first fall freeze is November 7. In 1 year in 10 it comes by October 27.
What hardiness zone is 30045?
ZIP 30045 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 30045 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
30019 Dacula 30046 Lawrenceville 30017 Grayson 30043 30078 Snellville 30011 Auburn 30044 30052 Loganville
Other ZIP codes in Gwinnett County
30017 30019 30024 30039 30043 30044 30046 30047 30071 30078 30092 30093 30096 30518 30519 All Gwinnett County frost dates · Georgia frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
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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.