When to plant in Stoughton, WI
USDA Zone 5bStoughton, Wisconsin frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 5b, Stoughton gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
STOUGHTON · 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 Stoughton’s own odds, recorded at STOUGHTON.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 25 | May 10 | Apr 26 | Sep 18 | Oct 1 | Oct 13 |
| 32°F | May 15 | Apr 30 | Apr 16 | Sep 28 | Oct 11 | Oct 24 |
| 28°F | May 3 | Apr 19 | Apr 5 | Oct 5 | Oct 22 | Nov 3 |
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 Stoughton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Stoughton planting FAQ
When is the last spring frost in Stoughton, WI?
On average, the last spring frost in Stoughton is around April 30 (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 Stoughton, WI?
Expect Stoughton's first fall frost near October 11 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Stoughton in?
Stoughton 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 Stoughton?
Stoughton has about 164 frost-free days — a moderate growing season — between the average last spring frost (April 30) and first fall frost (October 11).
When should I plant tomatoes in Stoughton?
For Stoughton, sow tomatoes indoors about March 5–March 19 and move the seedlings out around May 7, after the last spring frost.
Never miss a window in Stoughton
An email when it’s time to start seeds, transplant, and sow — timed to Stoughton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Oregon · 14 km
- Fitchburg · 18 km
- Madison · 25 km
- Verona · 27 km
- Sun Prairie · 29 km
- Fort Atkinson · 31 km
- Middleton · 31 km
- Janesville · 32 km
Frost dates recorded at STOUGHTON, 2 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 Stoughton, WI — Frost Dates & Zone 5b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00478229. Retrieved from https://blissgarden.com/wisconsin/stoughton.