When to plant in Anacortes, WA
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Anacortes, Washington — all computed from Anacortes's nearest NOAA weather station.
With about 257 frost-free days, Anacortes supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. Zone 8b means many perennials and even some tender shrubs overwinter in Anacortes, while your frost dates still decide when annuals go out.
Frost probability
ANACORTES · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Anacortes’s own odds, recorded at ANACORTES.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 21 | Apr 1 | Mar 15 | Oct 17 | Nov 2 | Nov 22 |
| 32°F | Mar 28 | Mar 8 | Feb 17 | Nov 1 | Nov 20 | Dec 11 |
| 28°F | Mar 5 | Feb 15 | Jan 5 | Nov 13 | Dec 5 | Jan 9 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Anacortes, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 18 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Anacortes planting FAQ
When is the last spring frost in Anacortes, WA?
Plan for the last spring frost in Anacortes around March 8 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Anacortes, WA?
The first fall frost in Anacortes typically arrives around November 20 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Anacortes in?
Anacortes is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Anacortes?
There are roughly 257 frost-free days in Anacortes (a long growing season), running from the average last frost around March 8 to the first fall frost near November 20.
When should I plant tomatoes in Anacortes?
In Anacortes, start tomato seeds indoors around January 11–January 25, then transplant seedlings outdoors around March 15 once the danger of frost has passed.
Never miss a window in Anacortes
An email when it’s time to start seeds, transplant, and sow — timed to Anacortes’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Oak Harbor · 22 km
- Burlington · 22 km
- Mount Vernon · 24 km
- Sedro-Woolley · 29 km
- Bellingham · 32 km
- Camano · 39 km
- Ferndale · 41 km
- Port Townsend · 43 km
Frost dates recorded at ANACORTES, 3 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Anacortes, WA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00450176. Retrieved from https://blissgarden.com/washington/anacortes.