When to plant in Wyomissing, PA
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Wyomissing, Pennsylvania — all computed from Wyomissing's nearest NOAA weather station.
In zone 7a, Wyomissing supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average first fall frost in Wyomissing is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
READING SPAATZ FLD · 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 Wyomissing’s own odds, recorded at READING SPAATZ FLD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 13 | Apr 28 | Apr 14 | Oct 4 | Oct 17 | Nov 1 |
| 32°F | Apr 30 | Apr 14 | Apr 1 | Oct 13 | Oct 29 | Nov 10 |
| 28°F | Apr 15 | Apr 1 | Mar 17 | Oct 25 | Nov 8 | Nov 24 |
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 Wyomissing, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 11 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.
Wyomissing planting FAQ
When is the last spring frost in Wyomissing, PA?
Plan for the last spring frost in Wyomissing around April 14 (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 Wyomissing, PA?
In Wyomissing, the first 32°F freeze of fall lands around October 29 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Wyomissing in?
Wyomissing 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 Wyomissing?
Wyomissing has about 198 frost-free days — a moderate growing season — between the average last spring frost (April 14) and first fall frost (October 29).
When should I plant tomatoes in Wyomissing?
For Wyomissing, sow tomatoes indoors about February 17–March 3 and move the seedlings out around April 21, after the last spring frost.
Never miss a window in Wyomissing
An email when it’s time to start seeds, transplant, and sow — timed to Wyomissing’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Reading · 3 km
- Ephrata · 25 km
- Pottstown · 29 km
- Lebanon · 39 km
- Coatesville · 41 km
- Lancaster · 43 km
- Pottsville · 44 km
- Phoenixville · 44 km
Frost dates recorded at READING SPAATZ FLD, 4 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 Wyomissing, PA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014712. Retrieved from https://blissgarden.com/pennsylvania/wyomissing.