When to plant in Evergreen Park, IL
USDA Zone 6aEvergreen Park, Illinois frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 6a means Evergreen Park sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
CHICAGO MIDWAY AP 3SW · 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 Evergreen Park’s own odds, recorded at CHICAGO MIDWAY AP 3SW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 6 | Apr 22 | Apr 9 | Oct 10 | Oct 22 | Nov 3 |
| 32°F | Apr 26 | Apr 10 | Mar 30 | Oct 21 | Nov 1 | Nov 16 |
| 28°F | Apr 14 | Apr 1 | Mar 15 | Oct 30 | Nov 11 | Nov 26 |
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 Evergreen Park, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 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.
Evergreen Park planting FAQ
When is the last spring frost in Evergreen Park, IL?
On average, the last spring frost in Evergreen Park is around April 10 (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 Evergreen Park, IL?
Expect Evergreen Park's first fall frost near November 1 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Evergreen Park in?
Evergreen Park 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 Evergreen Park?
There are roughly 205 frost-free days in Evergreen Park (a moderate growing season), running from the average last frost around April 10 to the first fall frost near November 1.
When should I plant tomatoes in Evergreen Park?
In Evergreen Park, start tomato seeds indoors around February 13–February 27, then transplant seedlings outdoors around April 17 once the danger of frost has passed.
Never miss a window in Evergreen Park
An email when it’s time to start seeds, transplant, and sow — timed to Evergreen Park’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Oak Lawn · 4 km
- Burbank · 6 km
- Alsip · 6 km
- Chicago Ridge · 7 km
- Blue Island · 7 km
- Worth · 8 km
- Bridgeview · 9 km
- Crestwood · 9 km
Frost dates recorded at CHICAGO MIDWAY AP 3SW, 7 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 Evergreen Park, IL — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00111577. Retrieved from https://blissgarden.com/illinois/evergreen-park.