When to plant in McDonough, GA
USDA Zone 8aEverything below — frost dates, hardiness zone, and what to plant when in McDonough, Georgia — is derived from the closest NOAA station with complete climate normals.
In zone 8a, McDonough supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in McDonough is now 5 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
MCDONOUGH 5 ENE · 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 McDonough’s own odds, recorded at MCDONOUGH 5 ENE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 28 | Apr 11 | Mar 25 | Oct 16 | Oct 27 | Nov 10 |
| 32°F | Apr 16 | Mar 31 | Mar 8 | Oct 24 | Nov 6 | Nov 24 |
| 28°F | Apr 4 | Mar 16 | Feb 20 | Nov 1 | Nov 17 | Dec 7 |
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 McDonough, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 23 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.
McDonough planting FAQ
When is the last spring frost in McDonough, GA?
Plan for the last spring frost in McDonough around March 31 (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 McDonough, GA?
Expect McDonough's first fall frost near November 6 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is McDonough in?
McDonough is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in McDonough?
McDonough has about 220 frost-free days — a long growing season — between the average last spring frost (March 31) and first fall frost (November 6).
When should I plant tomatoes in McDonough?
For McDonough, sow tomatoes indoors about February 3–February 17 and move the seedlings out around April 7, after the last spring frost.
Never miss a window in McDonough
An email when it’s time to start seeds, transplant, and sow — timed to McDonough’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Locust Grove · 12 km
- Stockbridge · 13 km
- Lovejoy · 16 km
- Griffin · 25 km
- Stonecrest · 27 km
- Forest Park · 28 km
- Riverdale · 28 km
- Conyers · 29 km
Frost dates recorded at MCDONOUGH 5 ENE, 11 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 McDonough, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00095666. Retrieved from https://blissgarden.com/georgia/mcdonough.