When to plant in Sayville, NY
USDA Zone 7bSayville, 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 7b means many perennials and even some tender shrubs overwinter in Sayville, while your frost dates still decide when annuals go out.
Frost probability
MOLLOY CERCOM · 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 Sayville’s own odds, recorded at MOLLOY CERCOM.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 8 | Apr 20 | Apr 5 | Oct 15 | Oct 30 | Nov 13 |
| 32°F | Apr 21 | Apr 4 | Mar 22 | Oct 27 | Nov 11 | Nov 29 |
| 28°F | Apr 5 | Mar 24 | Mar 9 | Nov 6 | Nov 24 | Dec 12 |
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 Sayville, 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.
Sayville planting FAQ
When is the last spring frost in Sayville, NY?
Plan for the last spring frost in Sayville around April 4 (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 Sayville, NY?
The first fall frost in Sayville typically arrives around November 11 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Sayville in?
Sayville is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Sayville?
There are roughly 221 frost-free days in Sayville (a long growing season), running from the average last frost around April 4 to the first fall frost near November 11.
When should I plant tomatoes in Sayville?
In Sayville, start tomato seeds indoors around February 7–February 21, then transplant seedlings outdoors around April 11 once the danger of frost has passed.
Never miss a window in Sayville
An email when it’s time to start seeds, transplant, and sow — timed to Sayville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Holbrook · 5 km
- Patchogue · 6 km
- Ronkonkoma · 7 km
- Holtsville · 8 km
- East Islip · 9 km
- East Patchogue · 9 km
- Lake Ronkonkoma · 9 km
- Central Islip · 10 km
Frost dates recorded at MOLLOY CERCOM, 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 Sayville, NY — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00302151. Retrieved from https://blissgarden.com/new-york/sayville.