When to plant in Bellefontaine, OH
USDA Zone 6aBellefontaine, Ohio frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 6a means Bellefontaine 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 Bellefontaine is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
BELLEFONTAINE · 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 Bellefontaine’s own odds, recorded at BELLEFONTAINE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 21 | May 5 | Apr 20 | Sep 26 | Oct 9 | Oct 22 |
| 32°F | May 12 | Apr 26 | Apr 12 | Oct 7 | Oct 20 | Oct 31 |
| 28°F | May 2 | Apr 16 | Apr 1 | Oct 16 | Oct 30 | 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 Bellefontaine, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 29 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.
Bellefontaine planting FAQ
When is the last spring frost in Bellefontaine, OH?
On average, the last spring frost in Bellefontaine is around April 26 (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 Bellefontaine, OH?
The first fall frost in Bellefontaine typically arrives around October 20 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Bellefontaine in?
Bellefontaine 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 Bellefontaine?
There are roughly 177 frost-free days in Bellefontaine (a moderate growing season), running from the average last frost around April 26 to the first fall frost near October 20.
When should I plant tomatoes in Bellefontaine?
In Bellefontaine, start tomato seeds indoors around March 1–March 15, then transplant seedlings outdoors around May 3 once the danger of frost has passed.
Never miss a window in Bellefontaine
An email when it’s time to start seeds, transplant, and sow — timed to Bellefontaine’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Urbana · 28 km
- Sidney · 35 km
- Marysville · 39 km
- Piqua · 47 km
- Springfield · 48 km
- Lima · 51 km
- Troy · 53 km
- Tipp City · 57 km
Frost dates recorded at BELLEFONTAINE, 1 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 Bellefontaine, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00330563. Retrieved from https://blissgarden.com/ohio/bellefontaine.