When to plant in Kingston, PA
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Kingston, Pennsylvania — is derived from the closest NOAA station with complete climate normals.
These dates come from a station roughly 15 km away, the closest with full normals; terrain around Kingston (elevation, water, pavement) can move your real frost dates a few days either way. Zone 6b means Kingston sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
The average first fall frost in Kingston is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
WILKES-BARRE INTL 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 Kingston’s own odds, recorded at WILKES-BARRE INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 4 | Apr 21 | Sep 25 | Oct 7 | Oct 22 |
| 32°F | May 10 | Apr 23 | Apr 9 | Oct 4 | Oct 20 | Nov 4 |
| 28°F | Apr 26 | Apr 10 | Mar 30 | Oct 16 | Nov 3 | Nov 19 |
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 Kingston, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 38 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.
Kingston planting FAQ
When is the last spring frost in Kingston, PA?
On average, the last spring frost in Kingston is around April 23 (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 Kingston, PA?
The first fall frost in Kingston typically arrives around October 20 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Kingston in?
Kingston 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 Kingston?
There are roughly 180 frost-free days in Kingston (a moderate growing season), running from the average last frost around April 23 to the first fall frost near October 20.
When should I plant tomatoes in Kingston?
In Kingston, start tomato seeds indoors around February 26–March 12, then transplant seedlings outdoors around April 30 once the danger of frost has passed.
Never miss a window in Kingston
An email when it’s time to start seeds, transplant, and sow — timed to Kingston’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Wilkes-Barre · 2 km
- Nanticoke · 12 km
- Mountain Top · 14 km
- Scranton · 24 km
- Dunmore · 29 km
- Hazleton · 36 km
- Berwick · 38 km
- Bloomsburg · 56 km
Frost dates recorded at WILKES-BARRE INTL AP, 15 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 Kingston, PA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014777. Retrieved from https://blissgarden.com/pennsylvania/kingston.