When to plant in Silverdale, WA
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Silverdale, Washington — all computed from Silverdale's nearest NOAA weather station.
In zone 8b, Silverdale supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
BREMERTON · 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 Silverdale’s own odds, recorded at BREMERTON.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 13 | Apr 25 | Apr 7 | Oct 4 | Oct 27 | Nov 13 |
| 32°F | Apr 24 | Mar 29 | Mar 5 | Oct 26 | Nov 14 | Dec 1 |
| 28°F | Mar 27 | Feb 27 | Jan 24 | Nov 10 | Nov 30 | Dec 24 |
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 Silverdale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 32 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.
Silverdale planting FAQ
When is the last spring frost in Silverdale, WA?
Silverdale's average last spring frost falls near March 29 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Silverdale, WA?
Expect Silverdale's first fall frost near November 14 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Silverdale in?
Silverdale is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Silverdale?
Silverdale has about 230 frost-free days — a long growing season — between the average last spring frost (March 29) and first fall frost (November 14).
When should I plant tomatoes in Silverdale?
For Silverdale, sow tomatoes indoors about February 1–February 15 and move the seedlings out around April 5, after the last spring frost.
Never miss a window in Silverdale
An email when it’s time to start seeds, transplant, and sow — timed to Silverdale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Poulsbo · 9 km
- Bainbridge Island · 13 km
- Bremerton · 14 km
- Port Orchard · 15 km
- Seattle · 25 km
- Shoreline · 27 km
- Edmonds · 29 km
- White Center · 31 km
Frost dates recorded at BREMERTON, 11 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 Silverdale, WA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00450872. Retrieved from https://blissgarden.com/washington/silverdale.