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Integrated Surface Database (ISD)

The Integrated Surface Database (ISD) consists of global hourly and synoptic observations compiled from numerous sources into a single common ASCII format and common data model. ISD integrates data from over 100 original data sources.

The database comprises over 20,000 stations worldwide, with some having data as far back as 1901. Currently there are over 11,000 stations "active" and updated daily in the database. ISD includes numerous parameters such as wind speed and direction, wind gust, temperature, dew point, cloud data, sea level pressure, altimeter setting, station pressure, present weather, visibility, precipitation amounts for various periods, snow depth, and various other elements as observed by each station.

  • User Interface Page
    After agreeing to the regulations regarding data usage, you will be directed to select a Simplified or Advanced Option to obtain the data. Not recommended for large volumes of data.
  • Direct FTP Access
    Data by year; highly recommended for large volumes of data.