When to plant in Forney, TX
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Forney, Texas — all computed from Forney's nearest NOAA weather station.
Forney enjoys a long ~252-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. These dates come from a station roughly 18 km away, the closest with full normals; terrain around Forney (elevation, water, pavement) can move your real frost dates a few days either way. In zone 8b, Forney supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
TERRELL MUNI 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 Forney’s own odds, recorded at TERRELL MUNI AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 14 | Mar 24 | Mar 6 | Oct 23 | Nov 7 | Nov 23 |
| 32°F | Mar 29 | Mar 11 | Feb 21 | Nov 2 | Nov 18 | Dec 6 |
| 28°F | Mar 16 | Feb 28 | Jan 31 | Nov 12 | Nov 30 | Dec 23 |
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 Forney, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 30 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.
Forney planting FAQ
When is the last spring frost in Forney, TX?
Forney's average last spring frost falls near March 11 — 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 Forney, TX?
The first fall frost in Forney typically arrives around November 18 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Forney in?
Forney is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Forney?
Forney has about 252 frost-free days — a long growing season — between the average last spring frost (March 11) and first fall frost (November 18).
When should I plant tomatoes in Forney?
For Forney, sow tomatoes indoors about January 14–January 28 and move the seedlings out around March 18, after the last spring frost.
Never miss a window in Forney
An email when it’s time to start seeds, transplant, and sow — timed to Forney’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Heartland · 8 km
- Heath · 12 km
- Mesquite · 12 km
- Seagoville · 13 km
- Terrell · 15 km
- Balch Springs · 16 km
- Rockwall · 20 km
- Rowlett · 21 km
Frost dates recorded at TERRELL MUNI AP, 18 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 Forney, TX — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053911. Retrieved from https://blissgarden.com/texas/forney.