When to plant in Weirton, WV
USDA Zone 6bWeirton, West Virginia frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 6b, Weirton gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
STEUBENVILLE · 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 Weirton’s own odds, recorded at STEUBENVILLE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 23 | May 8 | Apr 25 | Sep 28 | Oct 9 | Oct 22 |
| 32°F | May 15 | Apr 29 | Apr 16 | Oct 6 | Oct 20 | Nov 1 |
| 28°F | May 3 | Apr 18 | Apr 3 | Oct 17 | Oct 31 | Nov 12 |
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 Weirton, 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.
Weirton planting FAQ
When is the last spring frost in Weirton, WV?
On average, the last spring frost in Weirton is around April 29 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Weirton, WV?
The first fall frost in Weirton typically arrives around October 20 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Weirton in?
Weirton is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Weirton?
Weirton has about 174 frost-free days — a moderate growing season — between the average last spring frost (April 29) and first fall frost (October 20).
When should I plant tomatoes in Weirton?
For Weirton, sow tomatoes indoors about March 4–March 18 and move the seedlings out around May 6, after the last spring frost.
Never miss a window in Weirton
An email when it’s time to start seeds, transplant, and sow — timed to Weirton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Steubenville · 9 km
- Carnot-Moon · 32 km
- Washington · 37 km
- Wheeling · 39 km
- Franklin Park · 45 km
- Bethel Park · 46 km
- Whitehall · 49 km
- Pittsburgh · 50 km
Frost dates recorded at STEUBENVILLE, 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 Weirton, WV — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00338025. Retrieved from https://blissgarden.com/west-virginia/weirton.