Western Washington


Western Washington is a region of the United States defined as the area of Washington state west of the Cascade Mountains. This region is home to the state's largest city, Seattle, the state capital, Olympia, and the majority of the state's residents. The climate is generally far more damp and temperate than that of Eastern Washington.

Climate

Western Washington is known as having a far wetter climate than the eastern portion of the state, primarily due to the effects of the Cascades rain shadow. The average location in Eastern Washington only receives an average of 46.87 centimeters of precipitation per year, whereas the average place in Western Washington receives 167.72 centimeters. The average location in Western Washington gets 168 days of measurable precipitation per year.
The place that receives the most recorded precipitation is Lake Quinault on the Olympic Peninsula, with an average of 332.92 centimeters per year. The Long Beach Experimental Station has the most days of measurable precipitation, averaging 215 each year.

Population

As of the 2010 census, Western Washington was home to 5,229,486 of the state's total 6,724,540 residents, making its population comparable to that of Minnesota. The region has a land area of, for a population density of 211.36 people per square mile.

Counties

Counties in Western Washington:
Major cities in Western Washington: