What plant hardiness zone is Cosmopolis

Cosmopolis is located at Grays Harbor County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Cosmopolis is 9a by the USDA scale.

Coldest zone's winter temperature is +20 … +25 °F.

Plants of 9a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9a USDA.

Cosmopolis, Washington @ wikipedia.