Last frost date in Oak Harbor, Washington
March 13
Average last frost in spring. In an early year (1 in 10) it's over by February 20; in a late year (1 in 10) it comes after April 1.
November 14
Average first frost in fall. 1 year in 10 it comes by October 26.
Source: NOAA U.S. Climate Normals 1991–2020, station Whidbey Island NAS (USW00024255), 4.3 miles from Oak Harbor, elevation 47 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Feb 20 | Mar 13 | Apr 1 |
| First frost in fall | Oct 26 | Nov 14 | Dec 5 |
Frost-free days in an average year: 244
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 9 | Oct 28 |
| Frost (32°F) | Every year | Mar 13 | Nov 14 |
| Hard freeze (28°F) | 10 years in 10 | Feb 18 | Dec 1 |
Nights at 32°F or colder in an average year: 40
What to plant now in Oak Harbor
- 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 10 Oak Harbor: March 13
- Fall planting calendar for an average first frost around November 10 Oak Harbor: November 14
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
- Anacortes 13 mi · last frost Mar 8
- Port Townsend 14 mi · last frost Mar 1
- Mount Vernon 17 mi · last frost Mar 24
- Sedro-Woolley 24 mi · last frost Mar 27
- Arlington 24 mi · last frost Apr 22
Updated