... and most computer languages are turing equivalent, yet people prefer different ones ;) Seriously, yes, all the data is freely available in some combination

... and most computer languages are turing equivalent, yet people prefer different ones ;) Seriously, yes, all the data is freely available in some combination of text and graphics on the internets - the pitch here is the presentation, aggregation and ease of exploration. (disclosure: I'm one of the weatherspark devs)