ADDS - Aviation Digital Data Service


METAR CSV Output Data Format

  • What is CSV format?

  • CSV (Comma Separated Value) is a file format used as a "pseudo standard" to exchange data between applications. Results saved in this format can be read by Microsoft Excel and other spreadsheet applications.

  • Where I can I find out more?
    Please refer to the following links to learn more about the CSV file format:


  • METAR CSV Format
    • Statistics are reported first, followed by a header indicating which fields are being reported. This header is helpful when importing the report into a spreadsheet application.

    • Field Parameter not used
      The METAR fields are always returned in the same order, indicated by the Metar Field Description Table .

      Each row of METAR data is returned as a separate line and METAR fields are separated by a comma ','. Any fields that appear to be missing are either not reported in the METAR or were not parsed.

    • Field Parameter used
      The METAR fields are returned in the order indicated by the Metar Field Description Table except that only the requested fields will appear. Any fields that appear to be missing are either not reported in the METAR or were not parsed.
The output includes some statistics about the request, such as the number of results and the time taken to fulfill the request. All data is ordered by descending observation time. An error message is generated when an error in the input request prevents the retrieval of data. If a constraint parameter is missing and a default value exists, an appropriate warning message is produced and the default request is fulfilled. For a description of the METAR field names, their units and types, please refer to: METAR Field Description


An example of CSV output is below:

Output for METARS collected for KDEN from the past two hours:


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