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Retrieve historic weather data for the Netherlands

Source: R/knmi_historic_data.R
knmi_historic_data.Rd

This function retrieves historic hourly weather data collected by official KNMI weather stations. See knmi_stations for the station metadata included in this package.

Usage

knmi_historic_data(
  startyear,
  endyear,
  stations = NULL,
  progress = interactive()
)

Format

The returned data frame contains the following columns:

  • station = ID of measurement station;

  • date = Date;

  • FH = Hourly mean wind speed (in 0.1 m/s);

  • FX = Maximum wind gust (in 0.1 m/s) during the hourly division;

  • DR = Precipitation duration (in 0.1 hour) during the hourly division;

  • RH = Hourly precipitation amount (in 0.1 mm) (-1 for <0.05 mm);

  • city = City where the measurement station is located;

  • lon = Longitude of station (EPSG:4326);

  • lat = Latitude of station (EPSG:4326).

Arguments

startyear, endyear

Start and end year for the historic weather data. Both must be single whole years. KNMI hourly data is available from 1951.

stations

Optional station IDs to download. The default, NULL, downloads all stations in knmi_stations.

progress

Should a progress bar be shown? Defaults to interactive().

Value

Data frame containing weather data and metadata for weather station locations.

Details

The data is downloaded from KNMI when the function is called. This requires an internet connection and may take some time when many stations or years are requested.

Author

Martin Haringa

Examples

if (FALSE) { # \dontrun{
knmi_historic_data(2015, 2019, stations = c(260, 280))
} # }