When to plant in Mount Pleasant, MI
USDA Zone 6aEverything below — frost dates, hardiness zone, and what to plant when in Mount Pleasant, Michigan — is derived from the closest NOAA station with complete climate normals.
Zone 6a means Mount Pleasant sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
The average first fall frost in Mount Pleasant is now 12 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
CENTRAL MICHIGAN UNIV · 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 Mount Pleasant’s own odds, recorded at CENTRAL MICHIGAN UNIV.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 24 | May 10 | Apr 28 | Sep 25 | Oct 7 | Oct 22 |
| 32°F | May 16 | Apr 30 | Apr 17 | Oct 5 | Oct 20 | Nov 3 |
| 28°F | May 4 | Apr 19 | Apr 4 | Oct 20 | Nov 3 | Nov 17 |
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 Mount Pleasant, 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.
Mount Pleasant planting FAQ
When is the last spring frost in Mount Pleasant, MI?
Mount Pleasant's average last spring frost falls near April 30 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Mount Pleasant, MI?
Expect Mount Pleasant's first fall frost near October 20 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Mount Pleasant in?
Mount Pleasant is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Mount Pleasant?
There are roughly 173 frost-free days in Mount Pleasant (a moderate growing season), running from the average last frost around April 30 to the first fall frost near October 20.
When should I plant tomatoes in Mount Pleasant?
In Mount Pleasant, start tomato seeds indoors around March 5–March 19, then transplant seedlings outdoors around May 7 once the danger of frost has passed.
Never miss a window in Mount Pleasant
An email when it’s time to start seeds, transplant, and sow — timed to Mount Pleasant’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at CENTRAL MICHIGAN UNIV, 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 Mount Pleasant, MI — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00205662. Retrieved from https://blissgarden.com/michigan/mount-pleasant.