When to plant in Erie, PA
USDA Zone 7aErie, 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 7a, Erie supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
ERIE 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 Erie’s own odds, recorded at ERIE INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 21 | May 7 | Apr 23 | Oct 8 | Oct 23 | Nov 6 |
| 32°F | May 13 | Apr 26 | Apr 10 | Oct 21 | Nov 4 | Nov 17 |
| 28°F | Apr 25 | Apr 11 | Mar 31 | Nov 2 | Nov 16 | Dec 3 |
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 Erie, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 44 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.
Erie planting FAQ
When is the last spring frost in Erie, PA?
Erie's average last spring frost falls near April 26 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Erie, PA?
The first fall frost in Erie typically arrives around November 4 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Erie in?
Erie 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 Erie?
Erie has about 192 frost-free days — a moderate growing season — between the average last spring frost (April 26) and first fall frost (November 4).
When should I plant tomatoes in Erie?
For Erie, sow tomatoes indoors about March 1–March 15 and move the seedlings out around May 3, after the last spring frost.
Never miss a window in Erie
An email when it’s time to start seeds, transplant, and sow — timed to Erie’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ERIE INTL AP, 10 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 Erie, PA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014860. Retrieved from https://blissgarden.com/pennsylvania/erie.