Data viz: explore our interactive dashboards for drought, precipitation and snowpack
These maps and visualizations let you interact with vital data on our water supply.
Map: monthly average precipitation
This map shows total rain and snowfall in the contiguous United States, every month from 1981 to the present. The map's color scale runs...
Map: daily nationwide snowpack
This map shows daily snowpack estimates for the contiguous United States since October 2003. Using the dropdown menu above the chart – or clicking...