When to plant in Griffin, GA
USDA Zone 8aGriffin, Georgia frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 8a means many perennials and even some tender shrubs overwinter in Griffin, while your frost dates still decide when annuals go out.
The average last spring frost in Griffin is now 5 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
EXPERIMENT · 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 Griffin’s own odds, recorded at EXPERIMENT.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 22 | Apr 4 | Mar 13 | Oct 21 | Nov 1 | Nov 18 |
| 32°F | Apr 10 | Mar 20 | Feb 25 | Oct 31 | Nov 13 | Dec 3 |
| 28°F | Mar 25 | Mar 2 | Feb 8 | Nov 9 | Nov 29 | Dec 24 |
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 Griffin, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 31 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.
Griffin planting FAQ
When is the last spring frost in Griffin, GA?
Griffin's average last spring frost falls near March 20 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Griffin, GA?
Expect Griffin's first fall frost near November 13 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Griffin in?
Griffin is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Griffin?
There are roughly 238 frost-free days in Griffin (a long growing season), running from the average last frost around March 20 to the first fall frost near November 13.
When should I plant tomatoes in Griffin?
In Griffin, start tomato seeds indoors around January 23–February 6, then transplant seedlings outdoors around March 27 once the danger of frost has passed.
Never miss a window in Griffin
An email when it’s time to start seeds, transplant, and sow — timed to Griffin’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Locust Grove · 19 km
- Lovejoy · 23 km
- McDonough · 25 km
- Fayetteville · 30 km
- Stockbridge · 32 km
- Peachtree City · 32 km
- Riverdale · 38 km
- Forest Park · 43 km
Frost dates recorded at EXPERIMENT, 2 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 Griffin, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00093271. Retrieved from https://blissgarden.com/georgia/griffin.