Hydrologic Information Center Home
The Hydrologic Information Center provides public access to rainfall, streamflow and other
hydrologic data collected at King County gage sites. Data currently available
from this web site include:
- daily rainfall totals
- average daily stream discharge rates
- 15-Minute rainfall and streamflow
- discrete water quality data
About the Hydrologic Monitoring Program gives a detailed description
of gaging sites, gaging equipment and monitoring procedures.
To Obtain Data:
Please go to the Hydrologic Data Download Page.
Sea-Tac Precipitation Summary
Are we having a wet/dry/average year of precipation as recorded at Sea-Tac
International Airport? The Sea-Tac
precipitation page displays the current daily total precipitation as recorded at Sea-Tac by the
National Weather Service.
View presentations given by King County hydrology staff on the
Science Seminar Web site.