When to plant in Springfield, OH
USDA Zone 6aSpringfield, 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 Springfield 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 Springfield is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SPRINGFIELD WTP · 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 Springfield’s own odds, recorded at SPRINGFIELD WTP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 5 | Apr 22 | Sep 23 | Oct 6 | Oct 20 |
| 32°F | May 12 | Apr 25 | Apr 12 | Oct 4 | Oct 19 | Nov 1 |
| 28°F | Apr 30 | Apr 15 | Mar 31 | Oct 16 | Oct 30 | Nov 10 |
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 Springfield, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Springfield planting FAQ
When is the last spring frost in Springfield, OH?
Springfield's average last spring frost falls near April 25 — 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 Springfield, OH?
Expect Springfield's first fall frost near October 19 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Springfield in?
Springfield 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 Springfield?
There are roughly 177 frost-free days in Springfield (a moderate growing season), running from the average last frost around April 25 to the first fall frost near October 19.
When should I plant tomatoes in Springfield?
In Springfield, start tomato seeds indoors around February 28–March 14, then transplant seedlings outdoors around May 2 once the danger of frost has passed.
Never miss a window in Springfield
An email when it’s time to start seeds, transplant, and sow — timed to Springfield’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Urbana · 20 km
- Fairborn · 23 km
- Huber Heights · 28 km
- Xenia · 30 km
- London · 31 km
- Beavercreek · 31 km
- Riverside · 33 km
- Tipp City · 34 km
Frost dates recorded at SPRINGFIELD WTP, 5 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 Springfield, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00337935. Retrieved from https://blissgarden.com/ohio/springfield.