Last frost date in Greeley, Colorado
May 2
Average last frost in spring. In an early year (1 in 10) it's over by April 17; in a late year (1 in 10) it comes after May 14.
October 8
Average first frost in fall. 1 year in 10 it comes by September 26.
Source: NOAA U.S. Climate Normals 1991–2020, station Greeley Unc (USC00053553), 4 miles from Greeley, elevation 4,715 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Evans, so its frost dates are the same as Greeley's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 17 | May 2 | May 14 |
| First frost in fall | Sept 26 | Oct 8 | Oct 21 |
Frost-free days in an average year: 159
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 12 | Sept 30 |
| Frost (32°F) | Every year | May 2 | Oct 8 |
| Hard freeze (28°F) | Every year | Apr 20 | Oct 18 |
Nights at 32°F or colder in an average year: 153
What to plant now in Greeley
- Spring planting calendar for an average last frost around April 30 Greeley: May 2
- Fall planting calendar for an average first frost around October 10 Greeley: 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
- Windsor 9 mi · last frost May 3
- Loveland 15 mi · last frost May 10
- Fort Collins 18 mi · last frost May 2
- Longmont 24 mi · last frost May 7
- Thornton 35 mi · last frost May 2
Updated