When to plant in Riverdale, GA
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Riverdale, Georgia — all computed from Riverdale's nearest NOAA weather station.
Zone 8b means many perennials and even some tender shrubs overwinter in Riverdale, while your frost dates still decide when annuals go out.
Frost probability
JONESBORO · 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 Riverdale’s own odds, recorded at JONESBORO.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 21 | Apr 6 | Mar 20 | Oct 22 | Nov 1 | Nov 16 |
| 32°F | Apr 10 | Mar 25 | Mar 2 | Oct 31 | Nov 12 | Dec 2 |
| 28°F | Mar 29 | Mar 8 | Feb 12 | Nov 8 | Nov 28 | Dec 22 |
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 Riverdale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Riverdale planting FAQ
When is the last spring frost in Riverdale, GA?
Riverdale's average last spring frost falls near March 25 — 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 Riverdale, GA?
Expect Riverdale's first fall frost near November 12 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Riverdale in?
Riverdale is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Riverdale?
There are roughly 232 frost-free days in Riverdale (a long growing season), running from the average last frost around March 25 to the first fall frost near November 12.
When should I plant tomatoes in Riverdale?
In Riverdale, start tomato seeds indoors around January 28–February 11, then transplant seedlings outdoors around April 1 once the danger of frost has passed.
Never miss a window in Riverdale
An email when it’s time to start seeds, transplant, and sow — timed to Riverdale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Forest Park · 8 km
- College Park · 10 km
- East Point · 13 km
- Fayetteville · 14 km
- Union City · 14 km
- Lovejoy · 16 km
- Fairburn · 16 km
- Stockbridge · 17 km
Frost dates recorded at JONESBORO, 6 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 Riverdale, GA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00094700. Retrieved from https://blissgarden.com/georgia/riverdale.