When to plant in Pottsville, PA
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Pottsville, Pennsylvania — all computed from Pottsville's nearest NOAA weather station.
Heads up: the nearest complete-normals station is about 18 km from Pottsville, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 6b means Pottsville sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
MAHANOY CITY 2 N · 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 Pottsville’s own odds, recorded at MAHANOY CITY 2 N.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 26 | May 11 | Apr 24 | Sep 28 | Oct 10 | Oct 23 |
| 32°F | May 18 | Apr 30 | Apr 15 | Oct 7 | Oct 22 | Nov 3 |
| 28°F | May 6 | Apr 16 | Apr 2 | Oct 20 | Nov 1 | Nov 14 |
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 Pottsville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 29 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.
Pottsville planting FAQ
When is the last spring frost in Pottsville, PA?
Plan for the last spring frost in Pottsville around April 30 (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 Pottsville, PA?
In Pottsville, the first 32°F freeze of fall lands around October 22 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Pottsville in?
Pottsville 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 Pottsville?
There are roughly 175 frost-free days in Pottsville (a moderate growing season), running from the average last frost around April 30 to the first fall frost near October 22.
When should I plant tomatoes in Pottsville?
In Pottsville, start tomato seeds indoors around March 5–March 19, then transplant seedlings outdoors around May 7 once the danger of frost has passed.
Never miss a window in Pottsville
An email when it’s time to start seeds, transplant, and sow — timed to Pottsville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hazleton · 36 km
- Bloomsburg · 41 km
- Lebanon · 42 km
- Berwick · 42 km
- Wyomissing · 44 km
- Reading · 45 km
- Ephrata · 56 km
- Mountain Top · 57 km
Frost dates recorded at MAHANOY CITY 2 N, 18 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 Pottsville, PA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00365344. Retrieved from https://blissgarden.com/pennsylvania/pottsville.