When to plant in Berwick, PA
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Berwick, Pennsylvania — all computed from Berwick's nearest NOAA weather station.
These dates come from a station roughly 21 km away, the closest with full normals; terrain around Berwick (elevation, water, pavement) can move your real frost dates a few days either way. Zone 6b means Berwick sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
BENTON 3 NE · 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 Berwick’s own odds, recorded at BENTON 3 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 31 | May 15 | Apr 30 | Sep 20 | Oct 1 | Oct 12 |
| 32°F | May 19 | May 4 | Apr 21 | Sep 29 | Oct 11 | Oct 27 |
| 28°F | May 10 | Apr 22 | Apr 8 | Oct 8 | Oct 24 | Nov 9 |
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 Berwick, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 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.
Berwick planting FAQ
When is the last spring frost in Berwick, PA?
On average, the last spring frost in Berwick is around May 4 (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 Berwick, PA?
The first fall frost in Berwick typically arrives around October 11 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Berwick in?
Berwick 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 Berwick?
There are roughly 160 frost-free days in Berwick (a moderate growing season), running from the average last frost around May 4 to the first fall frost near October 11.
When should I plant tomatoes in Berwick?
In Berwick, start tomato seeds indoors around March 9–March 23, then transplant seedlings outdoors around May 11 once the danger of frost has passed.
Never miss a window in Berwick
An email when it’s time to start seeds, transplant, and sow — timed to Berwick’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bloomsburg · 18 km
- Hazleton · 26 km
- Nanticoke · 27 km
- Mountain Top · 30 km
- Wilkes-Barre · 38 km
- Kingston · 38 km
- Pottsville · 42 km
- Scranton · 62 km
Frost dates recorded at BENTON 3 NE, 21 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 Berwick, PA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00360582. Retrieved from https://blissgarden.com/pennsylvania/berwick.