When to plant in Mansfield, OH
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Mansfield, Ohio — all computed from Mansfield's nearest NOAA weather station.
Zone 6a means Mansfield 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 Mansfield is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
MANSFIELD LAHM MUNI 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 Mansfield’s own odds, recorded at MANSFIELD LAHM MUNI AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 6 | Apr 22 | Sep 26 | Oct 9 | Oct 23 |
| 32°F | May 12 | Apr 26 | Apr 14 | Oct 6 | Oct 22 | Nov 4 |
| 28°F | May 2 | Apr 16 | Apr 1 | Oct 19 | Nov 2 | 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 Mansfield, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Mansfield planting FAQ
When is the last spring frost in Mansfield, OH?
On average, the last spring frost in Mansfield 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 Mansfield, OH?
The first fall frost in Mansfield typically arrives around October 22 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Mansfield in?
Mansfield 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 Mansfield?
There are roughly 179 frost-free days in Mansfield (a moderate growing season), running from the average last frost around April 26 to the first fall frost near October 22.
When should I plant tomatoes in Mansfield?
In Mansfield, 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 Mansfield
An email when it’s time to start seeds, transplant, and sow — timed to Mansfield’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at MANSFIELD LAHM MUNI AP, 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 Mansfield, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014891. Retrieved from https://blissgarden.com/ohio/mansfield.