Last frost date in Sweet Home, Oregon
April 12
Average last frost in spring. In an early year (1 in 10) it's over by March 16; in a late year (1 in 10) it comes after May 5.
October 28
Average first frost in fall. 1 year in 10 it comes by October 5.
Source: NOAA U.S. Climate Normals 1991–2020, station Foster Dam (USC00353047), 1.6 miles from Sweet Home, elevation 550 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 16 | Apr 12 | May 5 |
| First frost in fall | Oct 5 | Oct 28 | Nov 21 |
Frost-free days in an average year: 197
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Oct 6 |
| Frost (32°F) | Every year | Apr 12 | Oct 28 |
| Hard freeze (28°F) | Every year | Mar 9 | Nov 18 |
Nights at 32°F or colder in an average year: 55
What to plant now in Sweet Home
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 10 Sweet Home: April 12
- Fall planting calendar for an average first frost around October 30 Sweet Home: October 28
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
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