When to plant in Oregon, OH
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Oregon, Ohio — all computed from Oregon's nearest NOAA weather station.
Zone 6b means Oregon 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 Oregon is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
TOLEDO METCALF FLD · 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 Oregon’s own odds, recorded at TOLEDO METCALF FLD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | May 1 | Apr 17 | Oct 1 | Oct 15 | Oct 28 |
| 32°F | May 7 | Apr 20 | Apr 5 | Oct 14 | Oct 27 | Nov 9 |
| 28°F | Apr 25 | Apr 8 | Mar 25 | 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 Oregon, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 31 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.
Oregon planting FAQ
When is the last spring frost in Oregon, OH?
Oregon's average last spring frost falls near April 20 — 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 Oregon, OH?
In Oregon, the first 32°F freeze of fall lands around October 27 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Oregon in?
Oregon 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 Oregon?
There are roughly 190 frost-free days in Oregon (a moderate growing season), running from the average last frost around April 20 to the first fall frost near October 27.
When should I plant tomatoes in Oregon?
In Oregon, start tomato seeds indoors around February 23–March 9, then transplant seedlings outdoors around April 27 once the danger of frost has passed.
Never miss a window in Oregon
An email when it’s time to start seeds, transplant, and sow — timed to Oregon’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Toledo · 12 km
- Maumee · 21 km
- Perrysburg · 21 km
- Sylvania · 23 km
- Monroe · 29 km
- Bowling Green · 36 km
- Fremont · 43 km
- Flat Rock · 51 km
Frost dates recorded at TOLEDO METCALF FLD, 11 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 Oregon, OH — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00004848. Retrieved from https://blissgarden.com/ohio/oregon.