When to plant in Duluth, GA
USDA Zone 8aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Duluth, Georgia — all computed from Duluth's nearest NOAA weather station.
Duluth's nearest full-normals station sits about 20 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. In zone 8a, Duluth supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
ATLANTA PEACHTREE AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Duluth’s own odds, recorded at ATLANTA PEACHTREE AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 22 | Apr 7 | Mar 21 | Oct 17 | Oct 29 | Nov 12 |
| 32°F | Apr 12 | Mar 25 | Mar 5 | Oct 26 | Nov 9 | Nov 27 |
| 28°F | Mar 31 | Mar 12 | Feb 18 | Nov 4 | Nov 22 | Dec 14 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Duluth, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 40 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Duluth planting FAQ
When is the last spring frost in Duluth, GA?
Plan for the last spring frost in Duluth around March 25 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Duluth, GA?
The first fall frost in Duluth typically arrives around November 9 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Duluth in?
Duluth is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Duluth?
Duluth has about 229 frost-free days — a long growing season — between the average last spring frost (March 25) and first fall frost (November 9).
When should I plant tomatoes in Duluth?
For Duluth, sow tomatoes indoors about January 28–February 11 and move the seedlings out around April 1, after the last spring frost.
Never miss a window in Duluth
An email when it’s time to start seeds, transplant, and sow — timed to Duluth’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Johns Creek · 6 km
- Peachtree Corners · 8 km
- Norcross · 9 km
- Suwanee · 10 km
- Lilburn · 12 km
- Alpharetta · 14 km
- Sugar Hill · 14 km
- Doraville · 15 km
Frost dates recorded at ATLANTA PEACHTREE AP, 20 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Duluth, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053863. Retrieved from https://blissgarden.com/georgia/duluth.