30 Year PRISM Normals Have Been Updated
The precipitation images, shapefiles and downloads have been reprocessed utilizing the updated 1981-2010 PRISM normals. Read More...
The Precipitation Generation Process is currently running and began at 2015/03/31 15:30.
NOTE: If you would like to bookmark or share your current view, you must first click the "Update URL for Bookmarking" button. The URL in your browser window can then be bookmarked or shared.
NOTE: Data for the entire country are usually available by 12:30 pm Eastern Time (9:30 am Pacific Time).