Last frost date in Centennial, Colorado
May 5
Average last frost in spring. In an early year (1 in 10) it's over by April 24; in a late year (1 in 10) it comes after May 17.
October 8
Average first frost in fall. 1 year in 10 it comes by September 25.
Source: NOAA U.S. Climate Normals 1991–2020, station Denver Centennial AP (USW00093067), 1.6 miles from Centennial, elevation 5,883 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Lone Tree, so its frost dates are the same as Centennial's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 24 | May 5 | May 17 |
| First frost in fall | Sept 25 | Oct 8 | Oct 20 |
Frost-free days in an average year: 154
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 15 | Oct 1 |
| Frost (32°F) | Every year | May 5 | Oct 8 |
| Hard freeze (28°F) | Every year | Apr 25 | Oct 17 |
Nights at 32°F or colder in an average year: 155
What to plant now in Centennial
- Spring planting calendar for an average last frost around April 30 Centennial: May 5
- Fall planting calendar for an average first frost around October 10 Centennial: October 8
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Colorado
- Parker 8 mi · last frost May 9
- Littleton 8 mi · last frost May 2
- Aurora 11 mi · last frost May 7
- Denver 12 mi · last frost May 4
- Castle Rock 15 mi · last frost May 9
Updated