Last frost date in Cottage Grove, Oregon
April 24
Average last frost in spring. In an early year (1 in 10) it's over by March 31; in a late year (1 in 10) it comes after May 10.
October 25
Average first frost in fall. 1 year in 10 it comes by September 30.
Source: NOAA U.S. Climate Normals 1991–2020, station Cottage Grove 2E (USC00351897), 1.5 miles from Cottage Grove, elevation 595 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 31 | Apr 24 | May 10 |
| First frost in fall | Sept 30 | Oct 25 | Nov 16 |
Frost-free days in an average year: 183
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 12 | Oct 1 |
| Frost (32°F) | Every year | Apr 24 | Oct 25 |
| Hard freeze (28°F) | Every year | Mar 23 | Nov 18 |
Nights at 32°F or colder in an average year: 59
What to plant now in Cottage Grove
- Spring planting calendar for an average last frost around April 20 Cottage Grove: April 24
- Fall planting calendar for an average first frost around October 20 Cottage Grove: October 25
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 Oregon
- Eugene 18 mi · last frost Apr 11
- Roseburg 42 mi · last frost Mar 23
- Sweet Home 46 mi · last frost Apr 12
- Lebanon 51 mi · last frost Mar 14
- Corvallis 55 mi · last frost Apr 17
Updated