Find comprehensive services related to drinking water in King County, Washington, such as water supply planning, water reuse, response to drought and climate change and information about where you get your drinking water.

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Drinking Water Supply in King County, Washington

Historical monthly precipitation and water use

Seattle Water Use and Rainfall by MonthAverage water use (the blue line) is based on Seattle retail and wholesale consumption in the water years 1990 to 1998, except the drought year of 1992.

Monthly precipitation is based on National Weather Service gage records from SeaTac airport between 1948 and 1994. The graph shows monthly averages (black square) plus or minus 1 standard deviation (blue circles), and maxima and minima.

Related information

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