When to plant in Newark, NJ
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Newark, New Jersey — all computed from Newark's nearest NOAA weather station.
Zone 7b means many perennials and even some tender shrubs overwinter in Newark, while your frost dates still decide when annuals go out.
Frost probability
HARRISON · 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 Newark’s own odds, recorded at HARRISON.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 16 | Apr 4 | Oct 12 | Oct 27 | Nov 9 |
| 32°F | Apr 16 | Apr 4 | Mar 23 | Oct 25 | Nov 6 | Nov 22 |
| 28°F | Apr 5 | Mar 26 | Mar 11 | Nov 5 | Nov 19 | Dec 5 |
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 Newark, 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.
Newark planting FAQ
When is the last spring frost in Newark, NJ?
Newark'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 Newark, NJ?
The first fall frost in Newark typically arrives around November 6 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Newark in?
Newark 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 Newark?
There are roughly 216 frost-free days in Newark (a long growing season), running from the average last frost around April 4 to the first fall frost near November 6.
When should I plant tomatoes in Newark?
In Newark, 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 Newark
An email when it’s time to start seeds, transplant, and sow — timed to Newark’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Harrison · 3 km
- Kearny · 5 km
- East Orange · 6 km
- Elizabeth · 7 km
- North Arlington · 8 km
- Bayonne · 9 km
- Jersey City · 9 km
- Roselle Park · 10 km
Frost dates recorded at HARRISON, 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 Newark, NJ — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00283704. Retrieved from https://blissgarden.com/new-jersey/newark.