When to plant in Terryville, NY
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Terryville, New York — is derived from the closest NOAA station with complete climate normals.
Zone 7b means many perennials and even some tender shrubs overwinter in Terryville, while your frost dates still decide when annuals go out.
Frost probability
MT SINAI · 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 Terryville’s own odds, recorded at MT SINAI.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 7 | Apr 20 | Apr 6 | Oct 10 | Oct 26 | Nov 10 |
| 32°F | Apr 19 | Apr 4 | Mar 23 | Oct 20 | Nov 7 | Nov 24 |
| 28°F | Apr 7 | Mar 27 | Mar 11 | Nov 2 | Nov 22 | Dec 9 |
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 Terryville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 14 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.
Terryville planting FAQ
When is the last spring frost in Terryville, NY?
Terryville's average last spring frost falls near April 4 — 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 Terryville, NY?
In Terryville, the first 32°F freeze of fall lands around November 7 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Terryville in?
Terryville 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 Terryville?
There are roughly 217 frost-free days in Terryville (a long growing season), running from the average last frost around April 4 to the first fall frost near November 7.
When should I plant tomatoes in Terryville?
In Terryville, 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 Terryville
An email when it’s time to start seeds, transplant, and sow — timed to Terryville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- East Setauket · 4 km
- Selden · 4 km
- Mount Sinai · 4 km
- Coram · 5 km
- Centereach · 5 km
- Miller Place · 6 km
- Stony Brook · 7 km
- Farmingville · 8 km
Frost dates recorded at MT SINAI, 4 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 Terryville, NY — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00305606. Retrieved from https://blissgarden.com/new-york/terryville.