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5-Minute Surface Weather Observations from the Automated Surface Observing Systems (ASOS) Network

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2005-01-01T00:00:00.000+00:00
This dataset includes five-minute reports with elements for wind speed and direction, visibility, present weather, temperature, dew point temperature, station altimeter, pressure and density altitude, and relative humidity for approximately 900 stations in the U.S., Puerto Rico, the U.S. Virgin Islands, and some Pacific island territories as part of the Automated Surface Observing Systems (ASOS) network. The ASOS Program is a joint effort of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). The ASOS network was designed to support weather forecast activities and aviation operations and, at the same time, support the needs of the meteorological, hydrological, and climatological research communities. The ASOS 5-minute data were collected and processed by the NOAA National Centers for Environmental Information (NCEI).

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Earth Science > Atmosphere > Air Quality > Visibility Earth Science > Atmosphere > Altitude > Barometric Altitude Earth Science > Atmosphere > Weather Events Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature Earth Science > Atmosphere > Atmospheric Water Vapor > Dew Point Earth Science > Atmosphere > Atmospheric Winds > Surface Winds Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Frequency Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Height Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain > Freezing Rain Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow Earth Science > Atmosphere > Precipitation > Precipitation Amount Continent > North America > United States Of America Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico Vertical Location > Land Surface Vertical Location > Troposphere Vertical Location > Stratosphere DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce DOT/FAA > Federal Aviation Administration, U.S. Department of Transportation DOD > U.S. Department of Defense

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