When to plant in Whitestown, IN
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Whitestown, Indiana — is derived from the closest NOAA station with complete climate normals.
In zone 6a, Whitestown gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
WHITESTOWN · 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 Whitestown’s own odds, recorded at WHITESTOWN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 17 | May 1 | Apr 18 | Sep 25 | Oct 8 | Oct 21 |
| 32°F | May 6 | Apr 21 | Apr 6 | Oct 5 | Oct 20 | Nov 1 |
| 28°F | Apr 25 | Apr 9 | Mar 25 | Oct 16 | Oct 31 | Nov 13 |
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 Whitestown, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Whitestown planting FAQ
When is the last spring frost in Whitestown, IN?
On average, the last spring frost in Whitestown is around April 21 (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 Whitestown, IN?
Expect Whitestown's first fall frost near October 20 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Whitestown in?
Whitestown is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Whitestown?
Whitestown has about 182 frost-free days — a moderate growing season — between the average last spring frost (April 21) and first fall frost (October 20).
When should I plant tomatoes in Whitestown?
For Whitestown, sow tomatoes indoors about February 24–March 10 and move the seedlings out around April 28, after the last spring frost.
Never miss a window in Whitestown
An email when it’s time to start seeds, transplant, and sow — timed to Whitestown’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Zionsville · 5 km
- Lebanon · 10 km
- Brownsburg · 15 km
- Carmel · 19 km
- Westfield · 20 km
- Speedway · 22 km
- Avon · 24 km
- Danville · 26 km
Frost dates recorded at WHITESTOWN, 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 Whitestown, IN — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00129557. Retrieved from https://blissgarden.com/indiana/whitestown.