4 USDA Planting Zones in Puget Sound Metro, WA: Seattle to Bellevue

The Puget Sound Metro area from Seattle to Bellevue spans four different USDA Planting Zones 8a, 8b, 9a, and 9b, as declared by USDA latest update released in 2023. Annual minimum winter temperatures here range from 10°F to 30°F (-12.2°C to -1.1°C).

The coldest zone here is USDA zone 8a (10°F to 15°F / -12.2°C to -9.4°C) which covers only Marietta Alderwood. The warmest zone is USDA zone 9b (25°F to 30°F / -3.9°C to -1.1°C) which includes parts of Seattle.

Most communities across the metro area like Bellevue, Bothell, Des Moines, Edmonds, Everett, Federal Way, Kenmore, Kent, Kirkland, Lynnwood, Mercer Island, Mukilteo, Sammamish, Woodinville, and Yarrow Point fall within USDA zones 8b (15°F to 20°F / -9.4°C to -6.7°C) and 9a (20°F to 25°F / -6.7°C to -3.9°C), with many cities experiencing winter lows between 15°F to 25°F.

Communities lying in single zone include Carnation and Maple Valley in zone 8b, and Bryn Mawr Skyway, Burien, Mountlake Terrace, Shoreline, and Tukwila are all in USDA zone 9a.

To exactly locate your USDA planting zone of Puget Sound Metro, WA area use our interactive map or the USDA hardiness zones table provided below.

USDA Zones Map Puget Sound Metro, WA

Select or type your Puget Sound Metro, WA location in selection box below, to find its USDA Growing zone.

USDA Planting Zones Table Puget Sound Metro, WA

Puget Sound Metro, Washington has four USDA Planting Zones 8a, 8b, 9a, and 9b. The 30 USDA hardiness zone locations in Puget Sound Metro, Washington are Bellevue, Bothell, Bryn Mawr Skyway, Burien, Carnation, Covington, Des Moines, Duvall, East Renton Highlands, Edmonds, Everett, Fall City, Federal Way, Kenmore, Kent, Kirkland, Lynnwood, Maple Valley, Marietta Alderwood, Mercer Island, Mirrormont, Mountlake Terrace, Mukilteo, North Bend, Sammamish, Seattle, Shoreline, Tukwila, Woodinville, and Yarrow Point. The 30 USDA hardiness zone locations in Puget Sound Metro, Washington are listed below.