When to plant in Marysville, WA
USDA Zone 8bMarysville, Washington frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 8b, Marysville supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Marysville is now 6 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
EVERETT · 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 Marysville’s own odds, recorded at EVERETT.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 8 | Apr 20 | Mar 31 | Oct 1 | Oct 18 | Nov 4 |
| 32°F | Apr 11 | Mar 24 | Mar 4 | Oct 16 | Nov 2 | Nov 23 |
| 28°F | Mar 20 | Mar 1 | Jan 31 | Oct 29 | Nov 21 | Dec 14 |
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 Marysville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Marysville planting FAQ
When is the last spring frost in Marysville, WA?
On average, the last spring frost in Marysville is around March 24 (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 Marysville, WA?
The first fall frost in Marysville typically arrives around November 2 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Marysville in?
Marysville is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Marysville?
Marysville has about 223 frost-free days — a long growing season — between the average last spring frost (March 24) and first fall frost (November 2).
When should I plant tomatoes in Marysville?
For Marysville, sow tomatoes indoors about January 27–February 10 and move the seedlings out around March 31, after the last spring frost.
Never miss a window in Marysville
An email when it’s time to start seeds, transplant, and sow — timed to Marysville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Lake Stevens · 10 km
- Arlington · 10 km
- Everett · 13 km
- Snohomish · 17 km
- Eastmont · 20 km
- Mukilteo · 22 km
- Lake Stickney · 24 km
- Silver Firs · 24 km
Frost dates recorded at EVERETT, 12 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 Marysville, WA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00452675. Retrieved from https://blissgarden.com/washington/marysville.