When to plant in Marshall, MN
USDA Zone 5aEverything below — frost dates, hardiness zone, and what to plant when in Marshall, Minnesota — is derived from the closest NOAA station with complete climate normals.
Zone 5a means Marshall sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
MARSHALL · 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 Marshall’s own odds, recorded at MARSHALL.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 28 | May 13 | May 1 | Sep 12 | Sep 25 | Oct 8 |
| 32°F | May 18 | May 5 | Apr 21 | Sep 21 | Oct 3 | Oct 17 |
| 28°F | May 9 | Apr 27 | Apr 12 | Sep 30 | Oct 13 | Oct 26 |
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 Marshall, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 44 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.
Marshall planting FAQ
When is the last spring frost in Marshall, MN?
On average, the last spring frost in Marshall is around May 5 (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 Marshall, MN?
In Marshall, the first 32°F freeze of fall lands around October 3 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Marshall in?
Marshall 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 Marshall?
There are roughly 151 frost-free days in Marshall (a moderate growing season), running from the average last frost around May 5 to the first fall frost near October 3.
When should I plant tomatoes in Marshall?
In Marshall, start tomato seeds indoors around March 10–March 24, then transplant seedlings outdoors around May 12 once the danger of frost has passed.
Never miss a window in Marshall
An email when it’s time to start seeds, transplant, and sow — timed to Marshall’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Brookings · 81 km
- Worthington · 92 km
- Willmar · 94 km
- New Ulm · 106 km
- Brandon · 114 km
- Watertown · 120 km
- Hutchinson · 122 km
- Sioux Falls · 126 km
Frost dates recorded at MARSHALL, 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 Marshall, MN — Frost Dates & Zone 5a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00215204. Retrieved from https://blissgarden.com/minnesota/marshall.