When to plant in Springboro, OH
USDA Zone 6bSpringboro, Ohio 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, Springboro gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
DAYTON WRIGHT BROS 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 Springboro’s own odds, recorded at DAYTON WRIGHT BROS AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | Apr 29 | Apr 14 | Oct 4 | Oct 17 | Oct 28 |
| 32°F | May 6 | Apr 17 | Apr 3 | Oct 13 | Oct 26 | Nov 6 |
| 28°F | Apr 21 | Apr 5 | Mar 20 | Oct 23 | Nov 5 | Nov 20 |
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 Springboro, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 23 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.
Springboro planting FAQ
When is the last spring frost in Springboro, OH?
Springboro's average last spring frost falls near April 17 — 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 Springboro, OH?
Expect Springboro's first fall frost near October 26 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Springboro in?
Springboro 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 Springboro?
Springboro has about 192 frost-free days — a moderate growing season — between the average last spring frost (April 17) and first fall frost (October 26).
When should I plant tomatoes in Springboro?
For Springboro, sow tomatoes indoors about February 20–March 6 and move the seedlings out around April 24, after the last spring frost.
Never miss a window in Springboro
An email when it’s time to start seeds, transplant, and sow — timed to Springboro’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Franklin · 5 km
- Miamisburg · 8 km
- Centerville · 11 km
- West Carrollton · 12 km
- Middletown · 13 km
- Lebanon · 15 km
- Kettering · 16 km
- Monroe · 17 km
Frost dates recorded at DAYTON WRIGHT BROS AP, 4 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 Springboro, OH — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053859. Retrieved from https://blissgarden.com/ohio/springboro.