When to plant in Lebanon, PA
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Lebanon, Pennsylvania — all computed from Lebanon's nearest NOAA weather station.
Zone 7a means many perennials and even some tender shrubs overwinter in Lebanon, while your frost dates still decide when annuals go out.
The average first fall frost in Lebanon is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
LEBANON 2 W · 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 Lebanon’s own odds, recorded at LEBANON 2 W.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 18 | May 2 | Apr 18 | Oct 1 | Oct 14 | Oct 28 |
| 32°F | May 7 | Apr 20 | Apr 5 | Oct 10 | Oct 25 | Nov 6 |
| 28°F | Apr 18 | Apr 4 | Mar 22 | Oct 22 | 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 Lebanon, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 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.
Lebanon planting FAQ
When is the last spring frost in Lebanon, PA?
Lebanon's average last spring frost falls near April 20 — 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 Lebanon, PA?
The first fall frost in Lebanon typically arrives around October 25 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Lebanon in?
Lebanon 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 Lebanon?
There are roughly 188 frost-free days in Lebanon (a moderate growing season), running from the average last frost around April 20 to the first fall frost near October 25.
When should I plant tomatoes in Lebanon?
In Lebanon, start tomato seeds indoors around February 23–March 9, then transplant seedlings outdoors around April 27 once the danger of frost has passed.
Never miss a window in Lebanon
An email when it’s time to start seeds, transplant, and sow — timed to Lebanon’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hershey · 20 km
- Elizabethtown · 26 km
- Ephrata · 27 km
- Colonial Park · 33 km
- Columbia · 35 km
- Lancaster · 35 km
- Progress · 36 km
- Wyomissing · 39 km
Frost dates recorded at LEBANON 2 W, 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 Lebanon, PA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00364896. Retrieved from https://blissgarden.com/pennsylvania/lebanon.