KNMI collects observations from 53 automatic weather stations situated in the Netherlands and BES islands on locations such as aerodromes and North Sea platforms. In addition, wind data from 5 KNMI wind poles are included. The weather stations report every 10 minutes meteorological parameters such as temperature, relative humidity, wind, air pressure, visibility, precipitation and cloud cover. The number of parameters differs per station. Only stations which observations have been collected within 6 minutes after observation time are part of this dataset. Once an observation is written as a file to the dataset, it remains available for 60 days. After this period expires, the file is automatically removed.