jm H9zÀ`%1äDêL×@=öüxpÍÑpZäâô»hL¸Yup. It's just a demo of what you can do when you upload data on chain but they've over 1.000.000 txs. Therefore you can ask the blockchain the data and plot them https://weathersv.app
https://whatsonchain.com/tx/59438d3bab9865d6cc35018121920c1fa6a41ab11236c4831b8c625a5c2d0831