When to plant in Artondale, WA
USDA Zone 9aArtondale, Washington frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Artondale enjoys a long ~255-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. In zone 9a, frost is a minor factor for Artondale — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
TACOMA NARROWS AP · 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 Artondale’s own odds, recorded at TACOMA NARROWS AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 2 | Apr 11 | Mar 26 | Oct 21 | Nov 4 | Nov 19 |
| 32°F | Apr 2 | Mar 11 | Feb 15 | Nov 3 | Nov 21 | Dec 10 |
| 28°F | Mar 8 | Feb 13 | Jan 1 | Nov 18 | Dec 11 | Jan 19 |
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 Artondale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 30 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.
Artondale planting FAQ
When is the last spring frost in Artondale, WA?
On average, the last spring frost in Artondale is around March 11 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Artondale, WA?
The first fall frost in Artondale typically arrives around November 21 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Artondale in?
Artondale is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Artondale?
Artondale has about 255 frost-free days — a long growing season — between the average last spring frost (March 11) and first fall frost (November 21).
When should I plant tomatoes in Artondale?
For Artondale, sow tomatoes indoors about January 14–January 28 and move the seedlings out around March 18, after the last spring frost.
Never miss a window in Artondale
An email when it’s time to start seeds, transplant, and sow — timed to Artondale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Gig Harbor · 5 km
- University Place · 13 km
- Tacoma · 16 km
- Lakewood · 18 km
- Federal Way · 24 km
- Fort Lewis · 24 km
- Fife · 24 km
- Parkland · 24 km
Frost dates recorded at TACOMA NARROWS AP, 7 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 Artondale, WA — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00094274. Retrieved from https://blissgarden.com/washington/artondale.