When to plant in Murrysville, PA
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Murrysville, Pennsylvania — all computed from Murrysville's nearest NOAA weather station.
In zone 6b, Murrysville gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
MURRYSVILLE 2 SW · 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 Murrysville’s own odds, recorded at MURRYSVILLE 2 SW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 5 | Apr 19 | Oct 1 | Oct 13 | Oct 26 |
| 32°F | May 12 | Apr 22 | Apr 7 | Oct 10 | Oct 25 | Nov 6 |
| 28°F | Apr 23 | Apr 7 | Mar 24 | Oct 23 | Nov 5 | Nov 20 |
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 Murrysville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Murrysville planting FAQ
When is the last spring frost in Murrysville, PA?
On average, the last spring frost in Murrysville is around April 22 (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 Murrysville, PA?
In Murrysville, the first 32°F freeze of fall lands around October 25 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Murrysville in?
Murrysville 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 Murrysville?
Murrysville has about 186 frost-free days — a moderate growing season — between the average last spring frost (April 22) and first fall frost (October 25).
When should I plant tomatoes in Murrysville?
For Murrysville, sow tomatoes indoors about February 25–March 11 and move the seedlings out around April 29, after the last spring frost.
Never miss a window in Murrysville
An email when it’s time to start seeds, transplant, and sow — timed to Murrysville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Monroeville · 9 km
- Plum · 10 km
- Lower Burrell · 16 km
- New Kensington · 16 km
- Greensburg · 18 km
- Wilkinsburg · 18 km
- McKeesport · 19 km
- Munhall · 21 km
Frost dates recorded at MURRYSVILLE 2 SW, 7 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 Murrysville, PA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00366111. Retrieved from https://blissgarden.com/pennsylvania/murrysville.