When to plant in Pleasant Prairie, WI
USDA Zone 5bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Pleasant Prairie, Wisconsin — all computed from Pleasant Prairie's nearest NOAA weather station.
In zone 5b, Pleasant Prairie gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
KENOSHA · 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 Pleasant Prairie’s own odds, recorded at KENOSHA.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 16 | May 1 | Apr 17 | Oct 1 | Oct 17 | Oct 29 |
| 32°F | May 3 | Apr 19 | Apr 6 | Oct 11 | Oct 26 | Nov 9 |
| 28°F | Apr 21 | Apr 8 | Mar 26 | Oct 24 | Nov 6 | Nov 20 |
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 Pleasant Prairie, 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.
Pleasant Prairie planting FAQ
When is the last spring frost in Pleasant Prairie, WI?
On average, the last spring frost in Pleasant Prairie 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 Pleasant Prairie, WI?
The first fall frost in Pleasant Prairie typically arrives around October 26 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Pleasant Prairie in?
Pleasant Prairie 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 Pleasant Prairie?
Pleasant Prairie has about 190 frost-free days — a moderate growing season — between the average last spring frost (April 19) and first fall frost (October 26).
When should I plant tomatoes in Pleasant Prairie?
For Pleasant Prairie, 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 Pleasant Prairie
An email when it’s time to start seeds, transplant, and sow — timed to Pleasant Prairie’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Kenosha · 7 km
- Zion · 8 km
- Beach Park · 9 km
- Antioch · 16 km
- Lindenhurst · 17 km
- Waukegan · 18 km
- Gurnee · 18 km
- Salem Lakes · 20 km
Frost dates recorded at KENOSHA, 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 Pleasant Prairie, WI — Frost Dates & Zone 5b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00474174. Retrieved from https://blissgarden.com/wisconsin/pleasant-prairie.