Dear @Akhilesh_Srivastava,
For this year’s index we exclusively assessed the openness of weather forecasts by looking into the availability of three forecast items: temperature, rainfall, and wind speed and direction. Only if these elements are provided, we considered the data as available online (see more here).
In a similar vein, we did not assess weather forecasts of other countries such as Japan (see our discussion here).
Do you also provide wind and temperature data openly?
We will get together with partners from the WMO and others to consult how to improve this category. I am happy to acknowledge in our reviewer comments the many data you already make available.
We will explore if we also assess historical weather data in the future. We also opened a call for governments and others to give us feedback what data is most important to assess. (look here.