WeatherKit historical starting point

The web app that I work on has been using DarkSky for a few years and we have had historical weather data for many years prior to the date we integrated it. We rely on historical data for accurate reports and data analysis. The issue we are having now is it looks like WeatherKit only supports historical data back to 7/31/2021 which is almost 2 years but much less than DarkSky provided. Is that going to be the official start moving forward or will earlier data be supported eventually?

WeatherKit historical starting point
 
 
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