When to plant in Cañon City, CO
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Cañon City, Colorado — all computed from Cañon City's nearest NOAA weather station.
Zone 6a means Cañon City sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
CANON CITY · 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 Cañon City’s own odds, recorded at CANON CITY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 1 | May 16 | May 3 | Sep 14 | Sep 28 | Oct 9 |
| 32°F | May 18 | May 4 | Apr 24 | Sep 25 | Oct 7 | Oct 19 |
| 28°F | May 7 | Apr 26 | Apr 13 | Oct 3 | Oct 17 | Oct 29 |
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 Cañon City, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 39 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.
Cañon City planting FAQ
When is the last spring frost in Cañon City, CO?
Cañon City's average last spring frost falls near May 4 — 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 Cañon City, CO?
In Cañon City, the first 32°F freeze of fall lands around October 7 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Cañon City in?
Cañon City 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 Cañon City?
There are roughly 156 frost-free days in Cañon City (a moderate growing season), running from the average last frost around May 4 to the first fall frost near October 7.
When should I plant tomatoes in Cañon City?
In Cañon City, start tomato seeds indoors around March 9–March 23, then transplant seedlings outdoors around May 11 once the danger of frost has passed.
Never miss a window in Cañon City
An email when it’s time to start seeds, transplant, and sow — timed to Cañon City’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Pueblo West · 41 km
- Fort Carson · 49 km
- Fountain · 54 km
- Security-Widefield · 56 km
- Pueblo · 57 km
- Colorado Springs · 62 km
- Cimarron Hills · 65 km
- Monument · 78 km
Frost dates recorded at CANON CITY, 2 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 Cañon City, CO — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00051294. Retrieved from https://blissgarden.com/colorado/canon-city.