National Integrated Drought Information System
Climate.gov
National Weather Service Home Page
Climate Prediction Center
National Centers for Environmental Information
North American Drought: A Paleo Perspective
North American Drought Monitor
USDA Drought Programs and Assistance
National Agricultural Statistics Service (NASS) Reports
National Water and Climate Center
NOAA/USDA Joint Agricultural Weather Facility
U.S. Department of the Interior, Bureau of Land Management, National Interagency Coordination Center (NICC)
WaterWatch
USGS VegDRI Viewer
The National Drought Mitigation Center’s website includes a collection of state drought monitoring and planning resources. See Drought Planning Resources by State.
American Association of State Climatologists
Regional Climate Centers
Western U.S. Climate Historical Summaries
Applied Climate Information System
Climate division-based data
Paleoclimatic indicators
National Weather Service Forecast Offices