When to plant in Dakota Ridge, CO
USDA Zone 6aDakota Ridge, Colorado 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, Dakota Ridge gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
MARSTON FLTR PLT · 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 Dakota Ridge’s own odds, recorded at MARSTON FLTR PLT.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 29 | May 12 | Apr 30 | Sep 17 | Oct 2 | Oct 15 |
| 32°F | May 17 | May 2 | Apr 20 | Sep 27 | Oct 11 | Oct 23 |
| 28°F | May 7 | Apr 23 | Apr 8 | Oct 6 | Oct 21 | Nov 5 |
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 Dakota Ridge, 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.
Dakota Ridge planting FAQ
When is the last spring frost in Dakota Ridge, CO?
Dakota Ridge's average last spring frost falls near May 2 — 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 Dakota Ridge, CO?
The first fall frost in Dakota Ridge typically arrives around October 11 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Dakota Ridge in?
Dakota Ridge 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 Dakota Ridge?
Dakota Ridge has about 162 frost-free days — a moderate growing season — between the average last spring frost (May 2) and first fall frost (October 11).
When should I plant tomatoes in Dakota Ridge?
For Dakota Ridge, sow tomatoes indoors about March 7–March 21 and move the seedlings out around May 9, after the last spring frost.
Never miss a window in Dakota Ridge
An email when it’s time to start seeds, transplant, and sow — timed to Dakota Ridge’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Ken Caryl · 5 km
- Columbine · 7 km
- Lakewood · 9 km
- Littleton · 10 km
- Englewood · 12 km
- Golden · 15 km
- Highlands Ranch · 17 km
- Wheat Ridge · 17 km
Frost dates recorded at MARSTON FLTR PLT, 6 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 Dakota Ridge, CO — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00055402. Retrieved from https://blissgarden.com/colorado/dakota-ridge.