NCEI is currently moving its data and applications to the cloud. This upgrade may result in temporary data access delays. Please see our cloud migration overview and frequently asked questions for more information and resources. Check the NCEI Alerts page for impacted products and datasets.
NCEI has acquired these legacy datasets from multiple sources over many decades. The data are provided, ‘as is,’ and in most cases the only available information is in the linked documentation. Our legacy pages include: