When to plant in Lindenhurst, IL
USDA Zone 5bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Lindenhurst, Illinois — all computed from Lindenhurst's nearest NOAA weather station.
Zone 5b means Lindenhurst sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
LAKE VILLA 2NE · 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 Lindenhurst’s own odds, recorded at LAKE VILLA 2NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 21 | May 5 | Apr 22 | Sep 28 | Oct 11 | Oct 25 |
| 32°F | May 9 | Apr 24 | Apr 11 | Oct 8 | Oct 23 | Nov 4 |
| 28°F | Apr 28 | Apr 13 | Mar 31 | Oct 20 | Nov 3 | 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 Lindenhurst, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 13 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.
Lindenhurst planting FAQ
When is the last spring frost in Lindenhurst, IL?
Plan for the last spring frost in Lindenhurst around April 24 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Lindenhurst, IL?
The first fall frost in Lindenhurst typically arrives around October 23 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Lindenhurst in?
Lindenhurst is in USDA hardiness zone 5b. In zone 5b, winters are cold — pick cold-hardy varieties and protect tender crops.
How long is the growing season in Lindenhurst?
There are roughly 182 frost-free days in Lindenhurst (a moderate growing season), running from the average last frost around April 24 to the first fall frost near October 23.
When should I plant tomatoes in Lindenhurst?
In Lindenhurst, 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 Lindenhurst
An email when it’s time to start seeds, transplant, and sow — timed to Lindenhurst’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Round Lake Beach · 6 km
- Antioch · 7 km
- Gages Lake · 8 km
- Grayslake · 9 km
- Gurnee · 9 km
- Round Lake · 10 km
- Beach Park · 13 km
- Fox Lake · 13 km
Frost dates recorded at LAKE VILLA 2NE, 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 Lindenhurst, IL — Frost Dates & Zone 5b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00114837. Retrieved from https://blissgarden.com/illinois/lindenhurst.