When to plant in North Tonawanda, NY
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in North Tonawanda, New York — is derived from the closest NOAA station with complete climate normals.
Zone 6b means North Tonawanda sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
N TONAWANDA · 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 North Tonawanda’s own odds, recorded at N TONAWANDA.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 27 | May 15 | May 2 | Sep 20 | Oct 2 | Oct 16 |
| 32°F | May 19 | May 6 | Apr 24 | Sep 30 | Oct 15 | Oct 30 |
| 28°F | May 10 | Apr 26 | Apr 12 | Oct 12 | Oct 29 | 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 North Tonawanda, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 9 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.
North Tonawanda planting FAQ
When is the last spring frost in North Tonawanda, NY?
On average, the last spring frost in North Tonawanda is around May 6 (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 North Tonawanda, NY?
The first fall frost in North Tonawanda typically arrives around October 15 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is North Tonawanda in?
North Tonawanda 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 North Tonawanda?
There are roughly 162 frost-free days in North Tonawanda (a moderate growing season), running from the average last frost around May 6 to the first fall frost near October 15.
When should I plant tomatoes in North Tonawanda?
In North Tonawanda, start tomato seeds indoors around March 11–March 25, then transplant seedlings outdoors around May 13 once the danger of frost has passed.
Never miss a window in North Tonawanda
An email when it’s time to start seeds, transplant, and sow — timed to North Tonawanda’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Tonawanda · 4 km
- Tonawanda Town · 7 km
- Kenmore · 9 km
- Eggertsville · 11 km
- Niagara Falls · 13 km
- Buffalo · 17 km
- Cheektowaga · 18 km
- Lockport · 20 km
Frost dates recorded at N TONAWANDA, 1 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 North Tonawanda, NY — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00306047. Retrieved from https://blissgarden.com/new-york/north-tonawanda.