When to plant in Lake Morton-Berrydale, WA
USDA Zone 8bLake Morton-Berrydale, 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, Lake Morton-Berrydale supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
LANDSBURG · 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 Lake Morton-Berrydale’s own odds, recorded at LANDSBURG.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 7 | May 10 | Apr 23 | Sep 19 | Oct 6 | Oct 26 |
| 32°F | May 10 | Apr 20 | Mar 31 | Oct 5 | Oct 25 | Nov 12 |
| 28°F | Apr 16 | Mar 24 | Feb 28 | Oct 24 | Nov 12 | Dec 8 |
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 Lake Morton-Berrydale, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 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.
Lake Morton-Berrydale planting FAQ
When is the last spring frost in Lake Morton-Berrydale, WA?
Plan for the last spring frost in Lake Morton-Berrydale around April 20 (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 Lake Morton-Berrydale, WA?
The first fall frost in Lake Morton-Berrydale typically arrives around October 25 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Lake Morton-Berrydale in?
Lake Morton-Berrydale is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Lake Morton-Berrydale?
Lake Morton-Berrydale has about 188 frost-free days — a moderate growing season — between the average last spring frost (April 20) and first fall frost (October 25).
When should I plant tomatoes in Lake Morton-Berrydale?
For Lake Morton-Berrydale, sow tomatoes indoors about February 23–March 9 and move the seedlings out around April 27, after the last spring frost.
Never miss a window in Lake Morton-Berrydale
An email when it’s time to start seeds, transplant, and sow — timed to Lake Morton-Berrydale’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Covington · 4 km
- Maple Valley · 6 km
- Auburn · 9 km
- Kent · 10 km
- Lake Tapps · 12 km
- Fairwood · 13 km
- Lakeland North · 13 km
- Lakeland South · 15 km
Frost dates recorded at LANDSBURG, 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 Lake Morton-Berrydale, WA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00454486. Retrieved from https://blissgarden.com/washington/lake-morton-berrydale.