When to plant in Alliance, OH
USDA Zone 6aAlliance, Ohio frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
These dates come from a station roughly 26 km away, the closest with full normals; terrain around Alliance (elevation, water, pavement) can move your real frost dates a few days either way. Zone 6a means Alliance sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
The average first fall frost in Alliance is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
AKRON CANTON 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 Alliance’s own odds, recorded at AKRON CANTON RGNL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 3 | Apr 20 | Sep 30 | Oct 13 | Oct 27 |
| 32°F | May 11 | Apr 24 | Apr 10 | Oct 11 | Oct 26 | Nov 8 |
| 28°F | Apr 30 | Apr 13 | Mar 29 | Oct 26 | Nov 7 | Nov 21 |
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 Alliance, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 28 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.
Alliance planting FAQ
When is the last spring frost in Alliance, OH?
Plan for the last spring frost in Alliance around April 24 (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 Alliance, OH?
The first fall frost in Alliance typically arrives around October 26 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Alliance in?
Alliance 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 Alliance?
There are roughly 185 frost-free days in Alliance (a moderate growing season), running from the average last frost around April 24 to the first fall frost near October 26.
When should I plant tomatoes in Alliance?
In Alliance, start tomato seeds indoors around February 27–March 13, then transplant seedlings outdoors around May 1 once the danger of frost has passed.
Never miss a window in Alliance
An email when it’s time to start seeds, transplant, and sow — timed to Alliance’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at AKRON CANTON RGNL AP, 26 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 Alliance, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014895. Retrieved from https://blissgarden.com/ohio/alliance.