When to plant in Phillipsburg, NJ
USDA Zone 7aEverything below — frost dates, hardiness zone, and what to plant when in Phillipsburg, New Jersey — is derived from the closest NOAA station with complete climate normals.
In zone 7a, Phillipsburg supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
PHILLIPSBURG-EASTON BRG · 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 Phillipsburg’s own odds, recorded at PHILLIPSBURG-EASTON BRG.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 17 | May 1 | Apr 17 | Oct 1 | Oct 13 | Oct 27 |
| 32°F | May 5 | Apr 18 | Apr 5 | Oct 11 | Oct 25 | Nov 5 |
| 28°F | Apr 18 | Apr 4 | Mar 23 | Oct 24 | Nov 4 | Nov 16 |
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 Phillipsburg, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Phillipsburg planting FAQ
When is the last spring frost in Phillipsburg, NJ?
Plan for the last spring frost in Phillipsburg around April 18 (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 Phillipsburg, NJ?
Expect Phillipsburg's first fall frost near October 25 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Phillipsburg in?
Phillipsburg 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 Phillipsburg?
Phillipsburg has about 190 frost-free days — a moderate growing season — between the average last spring frost (April 18) and first fall frost (October 25).
When should I plant tomatoes in Phillipsburg?
For Phillipsburg, sow tomatoes indoors about February 21–March 7 and move the seedlings out around April 25, after the last spring frost.
Never miss a window in Phillipsburg
An email when it’s time to start seeds, transplant, and sow — timed to Phillipsburg’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Easton · 3 km
- Bethlehem · 18 km
- Northampton · 26 km
- Fullerton · 26 km
- Allentown · 28 km
- Emmaus · 32 km
- Hackettstown · 35 km
- Budd Lake · 42 km
Frost dates recorded at PHILLIPSBURG-EASTON BRG, 2 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 Phillipsburg, NJ — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00286979. Retrieved from https://blissgarden.com/new-jersey/phillipsburg.