When to plant in Hinsdale, IL
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Hinsdale, Illinois — all computed from Hinsdale's nearest NOAA weather station.
In zone 6a, Hinsdale gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
LITTLE RED SCHOOL HSE · 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 Hinsdale’s own odds, recorded at LITTLE RED SCHOOL HSE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 18 | Apr 30 | Apr 16 | Sep 28 | Oct 12 | Oct 24 |
| 32°F | May 5 | Apr 19 | Apr 6 | Oct 8 | Oct 22 | Nov 3 |
| 28°F | Apr 22 | Apr 7 | Mar 26 | Oct 19 | Nov 1 | Nov 16 |
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 Hinsdale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Hinsdale planting FAQ
When is the last spring frost in Hinsdale, IL?
On average, the last spring frost in Hinsdale is around April 19 (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 Hinsdale, IL?
Expect Hinsdale's first fall frost near October 22 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Hinsdale in?
Hinsdale 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 Hinsdale?
Hinsdale has about 186 frost-free days — a moderate growing season — between the average last spring frost (April 19) and first fall frost (October 22).
When should I plant tomatoes in Hinsdale?
For Hinsdale, sow tomatoes indoors about February 22–March 8 and move the seedlings out around April 26, after the last spring frost.
Never miss a window in Hinsdale
An email when it’s time to start seeds, transplant, and sow — timed to Hinsdale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Western Springs · 2 km
- Westmont · 4 km
- La Grange · 5 km
- La Grange Park · 6 km
- Burr Ridge · 6 km
- Westchester · 6 km
- Brookfield · 7 km
- Darien · 8 km
Frost dates recorded at LITTLE RED SCHOOL HSE, 11 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 Hinsdale, IL — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00115110. Retrieved from https://blissgarden.com/illinois/hinsdale.