Western Washington

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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 most of the state's residents. The climate is generally far more damp and temperate than that of Eastern Washington.

Climate

File:Western Washington Köppen.png

Köppen climate types in western Washington

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 Template:Convert of precipitation per year,<ref name="WRCCprecip">http://www.wrcc.dri.edu/summary/Climsmwa.html Western Regional Climate Data Center Website</ref> whereas the average place in Western Washington receives Template:Convert.<ref name="WRCCprecip"/> The average location in Western Washington gets 168 days of measurable precipitation per year.<ref name="WRCCRainDays">http://www.wrcc.dri.edu/htmlfiles/wa/wa.01.html Template:Webarchive Western Regional Climate Data Center, Days of Precipitation</ref>

The place that receives the most recorded precipitation is Lake Quinault on the Olympic Peninsula, with an average of Template:Convert per year.<ref>Template:Cite web</ref> The Long Beach Experimental Station has the most days of measurable precipitation, averaging 215 each year.<ref name="WRCCRainDays"/>

Population

As of the 2020 census, Western Washington was home to 6,037,688 of the state's total 7,705,281 residents, making its population comparable to that of Missouri.<ref>Template:Cite web</ref><ref name="StatePops">See List of U.S. states and territories by population for the most recent state population figures.</ref> The region has a land area of Template:Convert, making its land area comparable to that of West Virginia. The population density of Western Washington is Template:Convert.