When to plant in Adrian, MI
USDA Zone 6aAdrian, Michigan frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 6a, Adrian gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
The average first fall frost in Adrian is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
ADRIAN 2 NNE · 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 Adrian’s own odds, recorded at ADRIAN 2 NNE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 27 | May 13 | Apr 29 | Sep 21 | Oct 3 | Oct 15 |
| 32°F | May 17 | May 1 | Apr 18 | Oct 1 | Oct 15 | Oct 29 |
| 28°F | May 7 | Apr 20 | Apr 6 | Oct 12 | Oct 27 | Nov 9 |
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 Adrian, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 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.
Adrian planting FAQ
When is the last spring frost in Adrian, MI?
On average, the last spring frost in Adrian is around May 1 (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 Adrian, MI?
Expect Adrian's first fall frost near October 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Adrian in?
Adrian 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 Adrian?
Adrian has about 167 frost-free days — a moderate growing season — between the average last spring frost (May 1) and first fall frost (October 15).
When should I plant tomatoes in Adrian?
For Adrian, sow tomatoes indoors about March 6–March 20 and move the seedlings out around May 8, after the last spring frost.
Never miss a window in Adrian
An email when it’s time to start seeds, transplant, and sow — timed to Adrian’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ADRIAN 2 NNE, 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 Adrian, MI — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00200032. Retrieved from https://blissgarden.com/michigan/adrian.