Last frost date in Parker, Colorado
May 9
Average last frost in spring. In an early year (1 in 10) it's over by April 27; in a late year (1 in 10) it comes after May 23.
October 3
Average first frost in fall. 1 year in 10 it comes by September 21.
Source: NOAA U.S. Climate Normals 1991–2020, station Parker (USC00056323), 1.5 miles from Parker, elevation 5,904 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 27 | May 9 | May 23 |
| First frost in fall | Sept 21 | Oct 3 | Oct 15 |
Frost-free days in an average year: 145
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 20 | Sept 25 |
| Frost (32°F) | Every year | May 9 | Oct 3 |
| Hard freeze (28°F) | Every year | Apr 29 | Oct 12 |
Nights at 32°F or colder in an average year: 177
What to plant now in Parker
- Spring planting calendar for an average last frost around May 10 Parker: May 9
- Fall planting calendar for an average first frost around September 30 Parker: October 3
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
- Centennial 8 mi · last frost May 5
- Castle Rock 10 mi · last frost May 9
- Littleton 14 mi · last frost May 2
- Aurora 14 mi · last frost May 7
- Denver 19 mi · last frost May 4
Updated