When to plant in Kenosha, WI
USDA Zone 5bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Kenosha, Wisconsin — all computed from Kenosha's nearest NOAA weather station.
Zone 5b means Kenosha sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
KENOSHA RGNL 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 Kenosha’s own odds, recorded at KENOSHA RGNL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 26 | May 8 | Apr 25 | Sep 23 | Oct 7 | Oct 22 |
| 32°F | May 13 | Apr 28 | Apr 13 | Oct 1 | Oct 19 | Oct 31 |
| 28°F | May 2 | Apr 15 | Apr 1 | Oct 15 | Oct 30 | 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 Kenosha, 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.
Kenosha planting FAQ
When is the last spring frost in Kenosha, WI?
Plan for the last spring frost in Kenosha around April 28 (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 Kenosha, WI?
Expect Kenosha's first fall frost near October 19 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Kenosha in?
Kenosha 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 Kenosha?
There are roughly 174 frost-free days in Kenosha (a moderate growing season), running from the average last frost around April 28 to the first fall frost near October 19.
When should I plant tomatoes in Kenosha?
In Kenosha, start tomato seeds indoors around March 3–March 17, then transplant seedlings outdoors around May 5 once the danger of frost has passed.
Never miss a window in Kenosha
An email when it’s time to start seeds, transplant, and sow — timed to Kenosha’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Pleasant Prairie · 7 km
- Mount Pleasant · 13 km
- Zion · 14 km
- Beach Park · 16 km
- Racine · 16 km
- Antioch · 20 km
- Salem Lakes · 21 km
- Lindenhurst · 22 km
Frost dates recorded at KENOSHA RGNL AP, 5 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 Kenosha, WI — Frost Dates & Zone 5b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00004845. Retrieved from https://blissgarden.com/wisconsin/kenosha.