SeaTac Precipitation Data

A set of graphs showing the accumulated Sea-Tac precipitation beginning October 1, for the current water year.

In addition to current-year data, the graph shows the historical daily mean, and the standard deviations of the daily mean per calendar day for the water year (October 1 - September 30).

Data in this graph is retrieved and compiled from the he NOAA National Weather Service Report for Sea-Tac.

Charts displaying Seatac precipitation levels through the year

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SeaTac Precipitation Data

SeaTac Precipitation Data for Water Year 2024

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SeaTac Precipitation Data for Water Year 2024