Last frost date in Sedro-Woolley, Washington
March 27
Average last frost in spring. In an early year (1 in 10) it's over by March 8; in a late year (1 in 10) it comes after April 17.
November 6
Average first frost in fall. 1 year in 10 it comes by October 15.
Source: NOAA U.S. Climate Normals 1991–2020, station Sedro-woolley (USC00457507), 1.1 miles from Sedro-Woolley, elevation 60 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 8 | Mar 27 | Apr 17 |
| First frost in fall | Oct 15 | Nov 6 | Nov 28 |
Frost-free days in an average year: 224
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 22 | Oct 17 |
| Frost (32°F) | Every year | Mar 27 | Nov 6 |
| Hard freeze (28°F) | Every year | Mar 1 | Nov 24 |
Nights at 32°F or colder in an average year: 46
What to plant now in Sedro-Woolley
- Mustard greensAug 15 – Nov 1Now
- Garden peasSept 1 – Nov 1Now
- ParsleySept 1 – Nov 15Now
- RadishesSept 1 – Nov 15Now
- SpinachSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 1Now
- Onion setsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Asparagus plantsDec 1 – Jan 1Soon
- Spring planting calendar for an average last frost around March 30 Sedro-Woolley: March 27
- Fall planting calendar for an average first frost around November 10 Sedro-Woolley: November 6
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 Washington
- Mount Vernon 7 mi · last frost Mar 24
- Anacortes 18 mi · last frost Mar 8
- Bellingham 20 mi · last frost Apr 1
- Oak Harbor 24 mi · last frost Mar 13
- Arlington 24 mi · last frost Apr 22
Updated