Context http://projects.knmi.nl/klimatologie/daggegevens/selectie.cgi Content DDVEC Vector average wind direction in degrees (360 = north, 90 = east, 180 = south, 270 = west, 0 = windstorm / variable). See http://www.knmi.nl/kennis-en-datacentrum/achtergrond/klimatologischebrochures-en-boeken FHVEC Vector average wind speed (in 0.1 m / s). See http://www.knmi.nl/kennis-en-datacentrum/achtergrond/klimatologischebrochures-en-boeken FG Mean average wind speed (in 0.1 m / s) FHX Highest Hourly Average Wind Speed ??(in 0.1 m / s) FHXH Hour box in which FHX has been measured FHN Lowest Hourly Average Wind Speed ??(in 0.1 m / s) FHNH Hour box in which FHN is measured FXX Highest wind speed (in 0.1 m / s) FXXH Hour box in which FXX is measured TG Average average temperature (0.1 degrees Celsius) TN Minimum Temperature (0.1 degrees Celsius) TNH Hour box where TN is measured TX Maximum Temperature (0.1 degrees Celsius) TXH Hourbox where TX is measured T10N Minimum temperature at 10 cm height (0.1 degrees Celsius) T10NH 6-hour period in which T10N is measured SQ Sunshine duration (in 0.1 hours) calculated from the global radiation (-1 for <0.05 hours) SP Percentage of longest possible sunshine duration Q Global radiation (in J / cm2) DR Duration of precipitation (in 0.1 hours) RH Etching sum of the precipitate (in 0.1 mm) (-1 for <0.05 mm) RHX Highest amount of precipitation (in 0.1 mm) (-1 for <0.05 mm) RHXH Hour box in which RHX has been measured PG Average air pressure reduced to sea level (in 0.1 hPa) calculated from 24 hour values PX Highest hourly value of air pressure reduced to sea level (in 0.1 hPa) PXH Hour box in which PX has been measured PN Lowest hourly value of air pressure reduced to sea level (in 0.1 hPa) PNH Hour box in which PN is measured VVN Minimum sighted view VVNH Hour box in which VVN is measured VVX Maximum Visibility VVXH Hour box in which VVX is measured NG Average mean cloudiness (coverage of the upper air in eights, 9 = upper air invisible) UG Mean average relative humidity (in percentages) UX Maximum relative humidity (in percent) UXH Hour box in which UX has been measured UN Minimum relative humidity (in percentages) UNH Hourbox where UN has been measured EV24 Reference Vapor Evaporation (Makkink) (in 0.1 mm) Acknowledgements http://projects.knmi.nl/klimatologie/daggegevens/selectie.cgi Inspiration Is it possible to make predictions for tomorrow's temperature?