When to plant in Westmont, NJ
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Westmont, New Jersey — is derived from the closest NOAA station with complete climate normals.
In zone 7b, Westmont supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
PENNSAUKEN 1N · 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 Westmont’s own odds, recorded at PENNSAUKEN 1N.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 15 | Apr 27 | Apr 14 | Oct 6 | Oct 19 | Nov 1 |
| 32°F | May 1 | Apr 15 | Apr 1 | Oct 16 | Oct 31 | Nov 12 |
| 28°F | Apr 14 | Apr 1 | Mar 17 | Oct 31 | Nov 10 | Nov 24 |
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 Westmont, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Westmont planting FAQ
When is the last spring frost in Westmont, NJ?
On average, the last spring frost in Westmont is around April 15 (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 Westmont, NJ?
The first fall frost in Westmont typically arrives around October 31 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Westmont in?
Westmont 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 Westmont?
Westmont has about 199 frost-free days — a moderate growing season — between the average last spring frost (April 15) and first fall frost (October 31).
When should I plant tomatoes in Westmont?
For Westmont, sow tomatoes indoors about February 18–March 4 and move the seedlings out around April 22, after the last spring frost.
Never miss a window in Westmont
An email when it’s time to start seeds, transplant, and sow — timed to Westmont’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Haddonfield · 2 km
- Collingswood · 2 km
- Cherry Hill Mall · 5 km
- Camden · 6 km
- Gloucester City · 6 km
- Bellmawr · 6 km
- Springdale · 8 km
- Greentree · 8 km
Frost dates recorded at PENNSAUKEN 1N, 7 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 Westmont, NJ — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00286864. Retrieved from https://blissgarden.com/new-jersey/westmont.