The National Centers for Environmental Information (NCEI) is a U.S. government agency that manages one of the world's largest archives of atmospheric, coastal, geophysical, and oceanic data.

Archived data was rendered inaccessible, certain webpages suffered limited availability, and the monthly climate reports for September were postponed.

[6] Environmental data are collected from many sources, including satellites, land-based stations, ocean buoys, ships, remotely operated underwater vehicles, weather balloons, radar, forecasting and climate models, and paleoclimatological research.

Areas of study were as varied as the environmental data housed at NCEI: hurricanes, drought, ocean warming, fire science, solar flares, artificial intelligence, marine microplastics, and many more.

[11] For example, retail and manufacturing businesses use climate data to assess how weather has influenced past sales so they can better plan for the future.

[14] Cattle ranchers use NCEI's weekly U.S. Drought Monitor[15] to make decisions about land management, herd size, and feed purchases.

[20] NCEI is headquartered in Asheville, North Carolina, with other primary locations in Boulder, Colorado; Silver Spring, Maryland; and Stennis Space Center in Hancock County, Mississippi.