ForsideVejrdataFrie data Dokumentation på engelsk Data Climate DataParameters for Station Value

Parameters for Station Value

The available parameters are listed below along with a description, the unit of the parameter, and in which resolutions data are available.

!header[empty]	[empty]	[empty]	[empty]	[colspan=4]stationValue Available for Denmark	[colspan=6]stationValue Available for Greenland (GRL) and Faroe Islands (FRO)
 
!headerName	Unit	Description	QC performed by DMI's climatologists	Hourly	Daily	Monthly and yearly	Type of day**	Hourly	Daily	Monthly and yearly	30 years (GRL)***	30 years (FRO)***	Type of day**

mean_temp	°C	Mean temperature	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

mean_daily_max_temp	°C	Mean of daily maximum temperature	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

max_temp_w_date	°C	Maximum temperature with associated date	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

max_temp_12h	°C	Maximum temperature within the last 12 hours	x	 - 	 - 	 - 	 - 	x	 - 	 - 	- 	- 	Old meteorological day

no_ice_days	no. of days	Number of ice days (maximum temperature < 0°C)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

no_summer_days	no. of days	Number of summer days (maximum temperature > 25°C)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

mean_daily_min_temp	°C	Mean of daily minimum temperature	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

min_temp	°C	Minimum temperature	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

min_temperature_12h	°C	Minimum temperature within 12 hours	x	 - 	 - 	 - 	-	x	 - 	 - 	- 	- 	Old meteorological day

no_cold_days	no. of days	Number of cold days (minimum temperature < -10 °C)	x	 - 	 - 	 - 	-	 - 	 - 	x	x 	x 	Old meteorological day

no_frost_days	no. of days	Number of days with frost (minimum temperature < 0°C)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

no_tropical_nights	no. of days	Number of tropical nights (minimum temperature > 20°C)	x	 - 	 - 	x	Local day	 - 	 - 	 - 	- 	x 	-

acc_heating_degree_days_17	no. of days	Accumulated heating degree days (17°C - mean_temp) (Danish: graddage - Danmark)	x	 - 	x	x	Local day	 - 	 - 	 - 	- 	x 	-

acc_heating_degree_days_19	no. of days	Accumulated heating degree days (19°C - mean_temp) (Danish: graddage - Grønland)	x	 - 	 - 	 - 	-	 - 	x	x	x 	x 	Old meteorological day

mean_relative_hum	%	Mean relative humidity	x	x	x	x	Local day	x	x	x	x 	- 	Old meteorological day

max_relative_hum	%	Maximum relative humidity	x	 - 	-	x	Local day	 - 	-	x	x 	- 	Old meteorological day

min_relative_hum	%	Minimum relative humidity	x	 - 	x	x	Local day	 - 	x	x	x 	- 	Old meteorological day

mean_vapour_pressure	hPa	Mean vapour pressure	x	 - 	 - 	 - 	-	 - 	x	x	x 	- 	Old meteorological day

mean_absolute_humidity 	% 	Mean absolute humidity 	x 	- 	- 	- 	-	- 	- 	- 	x 	- 	Old meteorological day

mean_wind_speed	m/s	Mean wind speed	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

max_wind_speed_10min	m/s	Maximum wind speed (10 minutes average)	x	x	x	x	Local day	 - 	x	x	x 	x 	Old meteorological day

max_wind_speed_3sec	m/s	Maximum wind speed (3 seconds average)	x	x	x	x	Local day	x	x	x	- 	- 	Old meteorological day

no_windy_days	no. of days	Number of windy days (mean wind speed >= 10.8m/s)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

no_stormy_days	no. of days	Number of stormy days (mean wind speed >= 20.8m/s)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

no_days_w_storm	no. of days	Number of days with storm (mean wind speed >=24.5m/s)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

no_days_w_hurricane	no. of days	Number of days with hurricane (mean wind speed >=28.5m/s)	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x 	Old meteorological day

mean_wind_dir_min0	degrees	Mean wind direction (10 minutes average) at minute 0	x	 - 	 - 	 - 	-	x	 - 	 - 	- 	- 	Old meteorological day

mean_wind_dir	degrees	Mean wind direction	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

mean_pressure	hPa	Mean pressure	x	x	x	x	Local day	x	x	x	x 	x 	Old meteorological day

max_pressure	hPa	Maximum pressure	x	 - 	 - 	 - 	-	 - 	x	x	x 	x 	Old meteorological day

min_pressure	hPa	Minimum pressure	x	 - 	 - 	 - 	-	 - 	x	x	x 	x 	Old meteorological day

bright_sunshine	minutes/hours	Minutes/hours of bright sunshine. \nFor hourly time resolution the unit is minutes, for all other time resolutions the unit is hours.	x	x	x	x	Local day	-	-	-	- 	- 	-

mean_radiation	W/m^2 / MJ/m^2	Mean radiation (spectral range: 305-2800nm) \nFor hourly time resolution the unit is W/m^2, for all other time resolutions the unit is MJ/m^2.	x	x	x	x	Local day	x	x	x	- 	- 	Old meteorological day

acc_precip	mm	Accumulated precipitation	x	x	x	x	Local day	x	x	x	x 	x	If it's a manual precipitation station: manual precipitation day. \n\nElse: old meteorological day

max_precip_24h	mm	Maximum 24-hour precipitation with associated date	x	 - 	 - 	x	Local day	 - 	 - 	x	x	x	If it's a manual precipitation station: manual precipitation day. \n\nElse: old meteorological day

acc_precip_past12h	mm	Accumulated precipitation during the past 12 hours	x	 - 	 - 	 - 	-	x	 - 	 - 	x 	x 	Old meteorological day

no_days_acc_precip_01	no. of days	Number of days with accumulated precipitation >= 0.1mm	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x	If it's a manual precipitation station: manual precipitation day. \n\nElse: old meteorological day

no_days_acc_precip_1	no. of days	Number of days with accumulated precipitation >= 1mm	x	 - 	 -	x	Local day	 - 	 - 	x	x 	x	If it's a manual precipitation station: manual precipitation day. \n\nElse: old meteorological day

no_days_acc_precip_10	no. of days	Number of days with accumulated precipitation >= 10mm	x	 - 	 - 	x	Local day	 - 	 - 	x	x 	x	If it's a manual precipitation station: manual precipitation day. \n\nElse: old meteorological day

no_days_snowfall 	no. of days	Number of days with accumulated precipitation >= 0.1mm 	- 	- 	- 	- 	-	-	- 	- 	x 	- 	Old meteorological day

acc_precip_past24h	mm	Accumulated precipitation during the past 24 hours	x	 - 	 - 	 - 	 - 	x	 - 	 - 	- 	- 	Old meteorological day

max_precip_30m	mm	Maximum 30 minutes intensity in 24 hours with date	x	 - 	x	x	The exeption to the rule	 - 	 - 	 - 	- 	- 	Old meteorological day

no_days_snow_cover	no. of days	Number of days with snow cover (> 50% covered)	x	 - 	 - 	x	Local day	 - 	 - 	 - 	- 	- 	Old meteorological day

no_days_fog 	no. of days	No. of days with fog (vis. < 1 km)	- 	- 	- 	- 	-	- 	- 	- 	x 	- 	Old meteorological day

mean_cloud_cover	%	The fraction of the sky covered by cloud of any type or height above the ground (see also Codes)	x	 -	 -	 -	-	x	x	x	x 	- 	Old meteorological day

no_clear_days	no. of days	Number of clear days (mean cloud cover < 20%)	x	 - 	 -	 -	-	 - 	x	x	x 	-	Old meteorological day

no_cloudy_days	no. of days	Number of cloudy days (mean cloud cover > 80%)	x	 - 	 -	 -	-	 - 	x	x	x 	- 	Old meteorological day

max_snow_depth	cm	Maximum snow depth with date and location	x	 - 	 - 	x	Local day	 - 	 - 	 - 	- 	- 	Local day

snow_depth	cm	Snow depth	x	 - 	x	 - 	Old meteorological day	 - 	 - 	 - 	- 	- 	-

snow_cover	%	Snow cover	x	 - 	x	 - 	Old meteorological day	 - 	 - 	 - 	- 	- 	-

temp_grass *	°C	Air temperature measured at grass height (5-20 cm over terrain)	-	x	x	 - 	Local day	 - 	 - 	 - 	- 	- 	-

temp_soil_10 *	°C	Temperature measured at a depth of 10 cm	-	x	x	 - 	Local day	 - 	 - 	 - 	- 	- 	-

temp_soil_30 *	°C	Temperature measured at a depth of 30 cm	-	x	x	 - 	Local day	 - 	 - 	 - 	- 	- 	-

leaf_moisture *	minutes	Leave moisture 	-	x	x	 - 	Local day	 - 	 - 	 - 	- 	- 	-

vapour_pressure_deficit_mean *	kPa	Vapour Pressure Deficit Mean 	-	x	x	-	Local day	 - 	 - 	 - 	- 	-	-

* The last 5 parameters in the table above are additional parameters, which are not quality controlled by DMI's climatologists. As a result, data can be erronous.

** Read more about the different types of days here.

*** 30 years reference values, currently for the periods 1961-1990 and 1991-2020

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Parameters for Station Value

Viden om vejr og klima