Identify number of weather stations available

Questions
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1

Hi,

How many weather station can be identified by Mathematica?

What kind of meteorological data is there?

Thank you for your help.

2

Hi Alex,

weatherData = WeatherData[] // Sort;

weatherData // Length
(* 7557 *)

Not all of them have data

WeatherData[weatherData[[1]], "Temperature"]
(* $Failed *)

WeatherData[weatherData[[2]], "Temperature"] // ToString
(* "25 degrees Celsius" *)

The list of properties is documented in the Details section.