When to plant in Hanover, PA
USDA Zone 7aHanover, Pennsylvania frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 7a means many perennials and even some tender shrubs overwinter in Hanover, while your frost dates still decide when annuals go out.
The average first fall frost in Hanover is now 5 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
HANOVER 4 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 Hanover’s own odds, recorded at HANOVER 4 SW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 7 | Apr 22 | Sep 28 | Oct 8 | Oct 21 |
| 32°F | May 11 | Apr 24 | Apr 9 | Oct 6 | Oct 20 | Nov 2 |
| 28°F | Apr 26 | Apr 9 | Mar 26 | Oct 14 | Oct 31 | 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 Hanover, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 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.
Hanover planting FAQ
When is the last spring frost in Hanover, PA?
On average, the last spring frost in Hanover is around April 24 (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 Hanover, PA?
In Hanover, the first 32°F freeze of fall lands around October 20 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Hanover in?
Hanover 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 Hanover?
There are roughly 179 frost-free days in Hanover (a moderate growing season), running from the average last frost around April 24 to the first fall frost near October 20.
When should I plant tomatoes in Hanover?
In Hanover, start tomato seeds indoors around February 27–March 13, then transplant seedlings outdoors around May 1 once the danger of frost has passed.
Never miss a window in Hanover
An email when it’s time to start seeds, transplant, and sow — timed to Hanover’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Weigelstown · 23 km
- Shiloh · 24 km
- Westminster · 26 km
- York · 27 km
- Reisterstown · 42 km
- Eldersburg · 45 km
- Carlisle · 47 km
- Owings Mills · 48 km
Frost dates recorded at HANOVER 4 SW, 6 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 Hanover, PA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00363665. Retrieved from https://blissgarden.com/pennsylvania/hanover.