When to plant in Chanhassen, MN
USDA Zone 5aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Chanhassen, Minnesota — all computed from Chanhassen's nearest NOAA weather station.
In zone 5a, Chanhassen gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
CHANHASSEN WSFO · 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 Chanhassen’s own odds, recorded at CHANHASSEN WSFO.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 24 | May 9 | Apr 27 | Sep 17 | Sep 30 | Oct 11 |
| 32°F | May 15 | Apr 30 | Apr 15 | Sep 25 | Oct 9 | Oct 21 |
| 28°F | May 4 | Apr 19 | Apr 4 | Oct 4 | Oct 19 | Oct 31 |
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 Chanhassen, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 8 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.
Chanhassen planting FAQ
When is the last spring frost in Chanhassen, MN?
On average, the last spring frost in Chanhassen 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 Chanhassen, MN?
In Chanhassen, the first 32°F freeze of fall lands around October 9 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Chanhassen in?
Chanhassen is in USDA hardiness zone 5a. In zone 5a, winters are cold — pick cold-hardy varieties and protect tender crops.
How long is the growing season in Chanhassen?
Chanhassen has about 162 frost-free days — a moderate growing season — between the average last spring frost (April 30) and first fall frost (October 9).
When should I plant tomatoes in Chanhassen?
For Chanhassen, 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 Chanhassen
An email when it’s time to start seeds, transplant, and sow — timed to Chanhassen’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Chaska · 6 km
- Eden Prairie · 8 km
- Victoria · 9 km
- Shakopee · 11 km
- Minnetonka · 12 km
- Hopkins · 15 km
- Edina · 16 km
- Prior Lake · 17 km
Frost dates recorded at CHANHASSEN WSFO, 1 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 Chanhassen, MN — Frost Dates & Zone 5a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00211448. Retrieved from https://blissgarden.com/minnesota/chanhassen.