When to plant in Whitehall, OH
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Whitehall, Ohio — all computed from Whitehall's nearest NOAA weather station.
Zone 6b means Whitehall sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
COLUMBUS PORT COLUMBUS 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 Whitehall’s own odds, recorded at COLUMBUS PORT COLUMBUS INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | Apr 29 | Apr 15 | Oct 5 | Oct 16 | Oct 28 |
| 32°F | May 5 | Apr 18 | Apr 4 | Oct 14 | Oct 27 | Nov 7 |
| 28°F | Apr 21 | Apr 5 | Mar 22 | Oct 26 | Nov 6 | Nov 21 |
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 Whitehall, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 14 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.
Whitehall planting FAQ
When is the last spring frost in Whitehall, OH?
On average, the last spring frost in Whitehall is around April 18 (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 Whitehall, OH?
Expect Whitehall's first fall frost near October 27 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Whitehall in?
Whitehall 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 Whitehall?
There are roughly 192 frost-free days in Whitehall (a moderate growing season), running from the average last frost around April 18 to the first fall frost near October 27.
When should I plant tomatoes in Whitehall?
In Whitehall, start tomato seeds indoors around February 21–March 7, then transplant seedlings outdoors around April 25 once the danger of frost has passed.
Never miss a window in Whitehall
An email when it’s time to start seeds, transplant, and sow — timed to Whitehall’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bexley · 4 km
- Gahanna · 8 km
- Reynoldsburg · 8 km
- Columbus · 9 km
- Pickerington · 14 km
- Canal Winchester · 15 km
- Pataskala · 15 km
- New Albany · 16 km
Frost dates recorded at COLUMBUS PORT COLUMBUS INTL AP, 3 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 Whitehall, OH — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014821. Retrieved from https://blissgarden.com/ohio/whitehall.