Skip to main content
U.S. flag

An official website of the United States government

Site Section
Data & Maps

California Data Exchange Center

Associated Agencies

California Department of Water Resources

The California Data Exchange Center is a centralized database that stores, processes, and exchanges real-time hydrologic information gathered by various cooperators throughout California. The California Data Exchange Center website provides data on precipitation, river forecast, river stages/flow, snow, and reservoir storage conditions in California.

The California Data Exchange Center gathers its data from the following agencies:

  • National Weather Service
  • U.S. Army Corps of Engineers
  • U.S. Bureau of Reclamation
  • U.S. Geological Survey
  • California Department of Fish and Fame
  • California Department of Water Resources
  • Sacramento Municipal Utility District
  • Pacific Gas & Electric
  • East Bay Municipal Utility District.

How To

Access all of the California Data Exchange Center's data, maps, and tools on their website at

Or, view data related to a specific area: