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National Centers for Environmental Information

NOAA's National Centers for Environmental Information (NCEI) hosts and provides public access to one of the most significant archives for environmental data on Earth. Through the Center for Weather and Climate and the Center for Coasts, Oceans, and Geophysics, we provide over 25 petabytes of comprehensive atmospheric, coastal, oceanic, and geophysical data.

U.S. Drought Monitor Update for September 17, 2019

According to the September 17 U.S. Drought Monitor, moderate to extreme drought covers 13.7% of the United States including Puerto Rico.

The Ongoing Study of Global Change

Scientific partners contribute to a sustained effort to understand the underlying factors driving global climate change.

A Historical Perspective on Drought

NCEI scientist Richard Heim compares the three most severe droughts that occurred in the United States over the last 120 years.

Accounting for Natural Variability in Our Changing Climate

An alternative method has been developed for U.S. averages of temperature and precipitation that accounts for climate variability and change.
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NCEI provides access to an extensive archive of environmental data through several platforms. We deliver the climate, coastal, oceanographic, and geophysical data you need in a variety of formats.

How to access data


NCEI maintains one of the most significant archives on Earth, with comprehensive oceanic, atmospheric, and geophysical data. We archive over 26 terabytes of data each month from over 130 observing platforms.

How to archive data