![]() Is based on ensemble weather models with 0.25° (~27 km) resolution. Probability of precipitation with more than 0.1 mm of the preceding hour. 7 cm snow = 10 mm precipitation water equivalent Snowfall amount of the preceding hour in centimeters. Total precipitation (rain, showers, snow) sum of the preceding hour ET₀ is commonly used to estimate the required irrigation for plants. Based on FAO-56 Penman-Monteith equations ET₀ is calculated from temperature, wind speed, humidity and solar radiation. 1 mm evapotranspiration per hour equals 1ĮT₀ Reference Evapotranspiration of a well watered grass field. See Wikipedia.Įvapotranspration from land surface and plants that weather models assumes for this For low VPD (<0.4), transpiration decreasesĬonvective available potential energy. Vapor Pressure Deficit (VPD) in kilopascal (kPa). This is equal to the totalĭirect solar radiation as average of the preceding hour on the horizontal plane and theĭiffuse solar radiation as average of the preceding hour Shortwave solar radiation as average of the preceding hour. Gusts at 10 meters above ground as a maximum of the preceding hour Wind direction at 10, 80, 120 or 180 meters above ground Wind speed at 10, 80, 120 or 180 meters above ground. Low level clouds and fog up to 3 km altitude Typically pressure on mean sea level is used in meteorology. Relative humidity at 2 meters above groundĭew point temperature at 2 meters above groundĪpparent temperature is the perceived feels-like temperature combining wind chillįactor, relative humidity and solar radiationĪtmospheric air pressure reduced to mean sea level (msl) or pressure at surface. Some variables like precipitation are calculatedįrom the preceding hour as an average or sum. Most weather variables are givenĪs an instantaneous value for the indicated hour. The parameter &hourly= accepts the following values. For API stability, no required parameters willīe added in the future! Hourly Parameter Definition SeeĪdditional optional URL parameters will be added. Server URL requires the prefix customer. Only required to commercial use to access reserved API resources for customers. Similar elevation to the requested coordinates using a 90-meter digital elevation Set a preference how grid-cells are selected. Manually select one or more weather models. A day must be specified as an ISO8601 date (e.g. If past_days is set, yesterday or the day before yesterday data are also returned. If auto is set as a time zone, the coordinates will be automatically If timezone is set, all timestamps are returned as local-time and data is ![]() Utc_offset_seconds again to get the correct date. Please note that all timestamp are in GMT+0! For daily values with unix If format unixtime is selected, all time values are returned in UNIX epoch Other wind speed speed units: ms, mph and kn If fahrenheit is set, all temperature values are converted to Fahrenheit. Include current weather conditions in the JSON output. Ifĭaily weather variables are specified, parameter timezone is required. Values can beĬomma separated, or multiple &daily= parameter in the URL can be used. &hourly= parameter in the URL can be used.Ī list of daily weather variable aggregations which should be returned. &elevation=nan is specified, downscaling will be disabled and the API uses theĪ list of weather variables which should be returned. You can manually set the elevation to correctly match mountain peaks. Per default, a 90 meter digital elevation model is used. The elevation used for statistical downscaling. Geographical WGS84 coordinate of the location
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