Precipitation Monitoring Data

NOAA Precipitation Data - Olympia Airport

PDF tip: Lines in PDF might appear jagged on your monitor, however, the documents should print clearly. Also, use the magnifying glass in Acrobat to zoom into particular areas for better readability.

Thurston County maintains data dating back to 1997.  If you need historical data, please contact the Monitoring Program.

1996-2007 Hourly Precipitation Data Per Month (Zipped Excel)

Click here for pre-2008 data.

2008 Hourly Precipitation Data Per Month (Zipped Excel)
January	February	March	April
May	June	July	August
September	October	November	December

2009 Hourly Precipitation Data Per Month (Zipped Excel)
January	February	March	April
May	June	July	August
September	October	November	December

2010 Hourly Precipitation Data Per Month (PDFs)
Note:  Zipped Excel Data Files are available upon request.
January	February	March	April
May	June	July	August

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Water Year Summary Charts and Tables
Year	Zipped Excel Data	Charts in PDF	Comments / Other
WY 2010-2011	Available Upon Request	Daily Totals Chart	Click here for a definition of water year.
WY 2011-2012	Available Upon Request	Daily Totals Chart

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Annual Precipitation Statistics -- NOAA Monitoring Data, Olympia Airport

Olympia Annual Precipitation Data, 1897-2009 (annual precipitation data collected since records have been kept - zipped Excel file.)

NOAA Precipitation Analysis for 1999-2009 Annual Statistics (compares actual vs. average precipitation per month for the year - PDF)

Average Month Precipitation for Olympia, Washington, 1951-2008 (zipped Excel file)

Contact Us

E-mail: bieverm@co.thurston.wa.us.