When to plant in Youngstown, OH
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Youngstown, Ohio — is derived from the closest NOAA station with complete climate normals.
Youngstown's nearest full-normals station sits about 17 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. In zone 6a, Youngstown gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
YOUNGSTOWN RGNL 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 Youngstown’s own odds, recorded at YOUNGSTOWN RGNL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 31 | May 16 | Apr 27 | Sep 22 | Oct 5 | Oct 20 |
| 32°F | May 20 | May 1 | Apr 16 | Oct 1 | Oct 17 | Nov 1 |
| 28°F | May 7 | Apr 20 | Apr 5 | Oct 15 | Nov 1 | Nov 15 |
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 Youngstown, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 24 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.
Youngstown planting FAQ
When is the last spring frost in Youngstown, OH?
On average, the last spring frost in Youngstown is around May 1 (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 Youngstown, OH?
Expect Youngstown's first fall frost near October 17 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Youngstown in?
Youngstown is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Youngstown?
Youngstown has about 169 frost-free days — a moderate growing season — between the average last spring frost (May 1) and first fall frost (October 17).
When should I plant tomatoes in Youngstown?
For Youngstown, sow tomatoes indoors about March 6–March 20 and move the seedlings out around May 8, after the last spring frost.
Never miss a window in Youngstown
An email when it’s time to start seeds, transplant, and sow — timed to Youngstown’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Austintown · 8 km
- Niles · 13 km
- Sharon · 19 km
- Warren · 21 km
- Hermitage · 22 km
- Salem · 28 km
- New Castle · 28 km
- Alliance · 45 km
Frost dates recorded at YOUNGSTOWN RGNL AP, 17 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 Youngstown, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014852. Retrieved from https://blissgarden.com/ohio/youngstown.