When to plant in Anoka, MN
USDA Zone 5aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Anoka, Minnesota — all computed from Anoka's nearest NOAA weather station.
Zone 5a means Anoka sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
ANDOVER 1N · 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 Anoka’s own odds, recorded at ANDOVER 1N.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 31 | May 16 | May 2 | Sep 10 | Sep 24 | Oct 6 |
| 32°F | May 21 | May 5 | Apr 23 | Sep 18 | Oct 2 | Oct 16 |
| 28°F | May 9 | Apr 25 | Apr 11 | Sep 27 | Oct 13 | Oct 27 |
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 Anoka, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 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.
Anoka planting FAQ
When is the last spring frost in Anoka, MN?
On average, the last spring frost in Anoka 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 Anoka, MN?
The first fall frost in Anoka typically arrives around October 2 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Anoka in?
Anoka 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 Anoka?
There are roughly 150 frost-free days in Anoka (a moderate growing season), running from the average last frost around May 5 to the first fall frost near October 2.
When should I plant tomatoes in Anoka?
In Anoka, 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 Anoka
An email when it’s time to start seeds, transplant, and sow — timed to Anoka’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Champlin · 5 km
- Andover · 6 km
- Ramsey · 7 km
- Coon Rapids · 8 km
- Brooklyn Park · 12 km
- Maple Grove · 13 km
- Rogers · 15 km
- Blaine · 15 km
Frost dates recorded at ANDOVER 1N, 9 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 Anoka, MN — Frost Dates & Zone 5a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00210190. Retrieved from https://blissgarden.com/minnesota/anoka.