When to plant in Norwalk, OH
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Norwalk, Ohio — all computed from Norwalk's nearest NOAA weather station.
Zone 6a means Norwalk sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
NORWALK WWTP · 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 Norwalk’s own odds, recorded at NORWALK WWTP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 4 | Apr 21 | Sep 30 | Oct 13 | Oct 27 |
| 32°F | May 9 | Apr 25 | Apr 11 | Oct 11 | Oct 25 | Nov 7 |
| 28°F | Apr 28 | Apr 12 | Mar 31 | Oct 22 | 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 Norwalk, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 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.
Norwalk planting FAQ
When is the last spring frost in Norwalk, OH?
Plan for the last spring frost in Norwalk around April 25 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Norwalk, OH?
The first fall frost in Norwalk typically arrives around October 25 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Norwalk in?
Norwalk 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 Norwalk?
There are roughly 183 frost-free days in Norwalk (a moderate growing season), running from the average last frost around April 25 to the first fall frost near October 25.
When should I plant tomatoes in Norwalk?
In Norwalk, 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 Norwalk
An email when it’s time to start seeds, transplant, and sow — timed to Norwalk’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at NORWALK WWTP, 3 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 Norwalk, OH — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00336118. Retrieved from https://blissgarden.com/ohio/norwalk.