hourly

metadata

property	value
name	hourly
original name	PT1H

datasets

data

parameters

name	original name	description	unit
temperature_air_mean_2m	air_temperature	Air temperature (default 2 m above ground), present value	degree_celsius
temperature_dew_point_mean_2m	dew_point_temperature	Dew-point temperature - the temperature at which the air, when cooled, will become saturated (and dew is formed)	degree_celsius
humidity	relative_humidity	Relative humidity	percent
wind_speed	wind_speed	Mean wind speed is registered as a mean value of the wind speed over the last ten minutes before the observation time. (default: 10 meters above ground, some stations have measurements at 2 meters)	meter_per_second
wind_direction	wind_from_direction	Mean wind direction over the last ten minutes before the observation time. Wind direction is defined as the direction from which the wind blows and is registered in degrees, where 360 degrees is north and 90 degrees is east.	degree
pressure_air_sea_level	air_pressure_at_sea_level	Air pressure reduced to mean sea level. The parameter is usually called QFF in aviation and shows the measured air pressure reduced to mean sea level by applying actual atmospheric conditions.	hectopascal
pressure_air_site	surface_air_pressure	Air pressure at the station. The parameter is usually called QFE in aviation and shows the measured air pressure reduced to the reference height of the station.	hectopascal
cloud_cover_total	cloud_area_fraction	Total cloud cover is registered using a code 0 - 8 describing how many eights of the sky are covered by clouds (0 = no clouds, 8 = completely overcast). Code -3 or 9 means the cloud cover cannot be estimated because the sky is obstructed from view by fog, drifting snow and the like; both are returned as null.	one_eighth
radiation_global_intensity	mean(surface_downwelling_shortwave_flux_in_air PT1H)	Hourly mean global radiation. Global radiation is the total downwelling shortwave radiation from the sun. Shortwave radiation have wavelengths in the area 295-2800 nm and therefore includes ultraviolet, visible and infrared light. The instrument measures the radiation flux through a horizontal surface (W/m2).	watt_per_square_meter
precipitation_height	sum(precipitation_amount PT1H)	Amount of precipitation per hour	millimeter
snow_depth	surface_snow_thickness	The depth of the snow is measured in cm from the ground to the top of the snow cover. Code -1 means no snow, and is returned as a depth of 0.	centimeter