When to plant in Westwood, NJ
USDA Zone 7aWestwood, New Jersey frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
These dates come from a station roughly 16 km away, the closest with full normals; terrain around Westwood (elevation, water, pavement) can move your real frost dates a few days either way. In zone 7a, Westwood supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
TETERBORO AP · 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 Westwood’s own odds, recorded at TETERBORO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 16 | Apr 3 | Oct 10 | Oct 24 | Nov 6 |
| 32°F | Apr 16 | Apr 3 | Mar 20 | Oct 21 | Nov 4 | Nov 20 |
| 28°F | Apr 4 | Mar 23 | Mar 7 | Nov 2 | Nov 16 | Dec 4 |
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 Westwood, 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.
Westwood planting FAQ
When is the last spring frost in Westwood, NJ?
Plan for the last spring frost in Westwood around April 3 (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 Westwood, NJ?
The first fall frost in Westwood typically arrives around November 4 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Westwood in?
Westwood 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 Westwood?
Westwood has about 215 frost-free days — a long growing season — between the average last spring frost (April 3) and first fall frost (November 4).
When should I plant tomatoes in Westwood?
For Westwood, sow tomatoes indoors about February 6–February 20 and move the seedlings out around April 10, after the last spring frost.
Never miss a window in Westwood
An email when it’s time to start seeds, transplant, and sow — timed to Westwood’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hillsdale · 2 km
- Paramus · 6 km
- Dumont · 6 km
- New Milford · 6 km
- Ridgewood · 7 km
- River Edge · 7 km
- Bergenfield · 8 km
- Waldwick · 8 km
Frost dates recorded at TETERBORO AP, 16 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 Westwood, NJ — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00094741. Retrieved from https://blissgarden.com/new-jersey/westwood.