When to plant in Wixom, MI
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Wixom, Michigan — all computed from Wixom's nearest NOAA weather station.
Zone 6a means Wixom 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 Wixom is now 5 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
MILFORD GM PROVING GROUND · 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 Wixom’s own odds, recorded at MILFORD GM PROVING GROUND.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 31 | May 18 | Apr 30 | Sep 19 | Oct 1 | Oct 15 |
| 32°F | May 22 | May 6 | Apr 21 | Sep 27 | Oct 12 | Oct 27 |
| 28°F | May 11 | Apr 26 | Apr 11 | Oct 8 | Oct 24 | Nov 6 |
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 Wixom, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 18 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.
Wixom planting FAQ
When is the last spring frost in Wixom, MI?
Wixom's average last spring frost falls near May 6 — 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 Wixom, MI?
Expect Wixom's first fall frost near October 12 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Wixom in?
Wixom 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 Wixom?
There are roughly 159 frost-free days in Wixom (a moderate growing season), running from the average last frost around May 6 to the first fall frost near October 12.
When should I plant tomatoes in Wixom?
In Wixom, start tomato seeds indoors around March 11–March 25, then transplant seedlings outdoors around May 13 once the danger of frost has passed.
Never miss a window in Wixom
An email when it’s time to start seeds, transplant, and sow — timed to Wixom’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Novi · 6 km
- South Lyon · 12 km
- Farmington Hills · 13 km
- Farmington · 14 km
- Livonia · 19 km
- Southfield · 23 km
- Beverly Hills · 24 km
- Pontiac · 24 km
Frost dates recorded at MILFORD GM PROVING GROUND, 14 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 Wixom, MI — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00205452. Retrieved from https://blissgarden.com/michigan/wixom.