When to plant in Sleepy Hollow, NY
USDA Zone 7aSleepy Hollow, New York frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 7a means many perennials and even some tender shrubs overwinter in Sleepy Hollow, while your frost dates still decide when annuals go out.
The average first fall frost in Sleepy Hollow is now 5 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
DOBBS FERRY-ARDSLEY · 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 Sleepy Hollow’s own odds, recorded at DOBBS FERRY-ARDSLEY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 18 | May 2 | Apr 19 | Oct 1 | Oct 12 | Oct 31 |
| 32°F | May 6 | Apr 20 | Apr 4 | Oct 10 | Oct 26 | Nov 10 |
| 28°F | Apr 20 | Apr 4 | Mar 20 | Oct 23 | Nov 7 | Nov 23 |
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 Sleepy Hollow, 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.
Sleepy Hollow planting FAQ
When is the last spring frost in Sleepy Hollow, NY?
Plan for the last spring frost in Sleepy Hollow around April 20 (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 Sleepy Hollow, NY?
The first fall frost in Sleepy Hollow typically arrives around October 26 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Sleepy Hollow in?
Sleepy Hollow is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Sleepy Hollow?
There are roughly 189 frost-free days in Sleepy Hollow (a moderate growing season), running from the average last frost around April 20 to the first fall frost near October 26.
When should I plant tomatoes in Sleepy Hollow?
In Sleepy Hollow, 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 Sleepy Hollow
An email when it’s time to start seeds, transplant, and sow — timed to Sleepy Hollow’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Tarrytown · 4 km
- Ossining · 6 km
- Dobbs Ferry · 10 km
- Haverstraw · 11 km
- New City · 12 km
- Pearl River · 12 km
- Nanuet · 12 km
- White Plains · 13 km
Frost dates recorded at DOBBS FERRY-ARDSLEY, 10 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 Sleepy Hollow, NY — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00302129. Retrieved from https://blissgarden.com/new-york/sleepy-hollow.