Curious how much this would cost you to do from Google cloud storage or aws. Historical data access can be quite valuable (and something that might be a premium paid feature even).
Otherwise it takes around 40 GB of disk space for every day of data. For an history of 100 days, 4000 GB are required. With compression I could save 50%, but have to invest a couple of days development time to make is work. You could calculate the AWS bill now ;-)
Data on cold storage is an option, but it also super slow....
Currently, I did not yet integrate all the high-resolution models that I want to. Coverage for Europe is great. In North America I will add high resolution NOAA models next.
Most likely I will keep only a limited subset of data as history, but on fast storage to make is accessible quickly
Interesting problem to solve.