When to plant in Clay, AL
USDA Zone 8aClay, Alabama frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 8a, Clay 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 Clay is now 5 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
PINSON · 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 Clay’s own odds, recorded at PINSON.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 30 | Apr 16 | Mar 30 | Oct 13 | Oct 25 | Nov 5 |
| 32°F | Apr 22 | Apr 4 | Mar 16 | Oct 21 | Nov 1 | Nov 15 |
| 28°F | Apr 10 | Mar 22 | Feb 27 | Oct 29 | Nov 11 | Dec 1 |
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 Clay, 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.
Clay planting FAQ
When is the last spring frost in Clay, AL?
Clay's average last spring frost falls near April 4 — 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 Clay, AL?
The first fall frost in Clay typically arrives around November 1 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Clay in?
Clay is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Clay?
Clay has about 211 frost-free days — a long growing season — between the average last spring frost (April 4) and first fall frost (November 1).
When should I plant tomatoes in Clay?
For Clay, sow tomatoes indoors about February 7–February 21 and move the seedlings out around April 11, after the last spring frost.
Never miss a window in Clay
An email when it’s time to start seeds, transplant, and sow — timed to Clay’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Trussville · 6 km
- Center Point · 9 km
- Moody · 15 km
- Leeds · 17 km
- Irondale · 18 km
- Gardendale · 19 km
- Mountain Brook · 26 km
- Birmingham · 26 km
Frost dates recorded at PINSON, 7 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 Clay, AL — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00016478. Retrieved from https://blissgarden.com/alabama/clay.