When to plant in New Kensington, PA
USDA Zone 6bNew Kensington, Pennsylvania frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 6b, New Kensington gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
NATRONA LOCK 4 · 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 New Kensington’s own odds, recorded at NATRONA LOCK 4.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | Apr 29 | Apr 14 | Oct 7 | Oct 21 | Nov 3 |
| 32°F | May 2 | Apr 16 | Mar 31 | Oct 20 | Nov 2 | Nov 16 |
| 28°F | Apr 16 | Apr 3 | Mar 19 | Nov 2 | Nov 14 | Dec 1 |
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 New Kensington, 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.
New Kensington planting FAQ
When is the last spring frost in New Kensington, PA?
Plan for the last spring frost in New Kensington around April 16 (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 New Kensington, PA?
In New Kensington, the first 32°F freeze of fall lands around November 2 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is New Kensington in?
New Kensington is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in New Kensington?
New Kensington has about 200 frost-free days — a moderate growing season — between the average last spring frost (April 16) and first fall frost (November 2).
When should I plant tomatoes in New Kensington?
For New Kensington, sow tomatoes indoors about February 19–March 5 and move the seedlings out around April 23, after the last spring frost.
Never miss a window in New Kensington
An email when it’s time to start seeds, transplant, and sow — timed to New Kensington’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Lower Burrell · 3 km
- Plum · 8 km
- Monroeville · 16 km
- Murrysville · 16 km
- Allison Park · 18 km
- Wilkinsburg · 18 km
- Munhall · 23 km
- Pittsburgh · 24 km
Frost dates recorded at NATRONA LOCK 4, 5 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 New Kensington, PA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00366151. Retrieved from https://blissgarden.com/pennsylvania/new-kensington.