Here’s a guide on exploring 120 years of global weather measurements with Clickhouse. I enjoyed following this guide over a weekend. Also it gives you a sense of the dataset, even if you’re not interested in the clickhouse part. https://clickhouse.com/docs/en/getting-started/example-datas...

ERA5 [1] will get to back to 1940. So not exactly 100 years but darn close.

[1] https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-...

You greatly overestimate how long systematic weather data collection has occurred across even first-world countries, nevermind the rest of the globe. There are certainly many, many places _right now_ where daily weather info isn't logged

"every location on Earth" is asking sort of a lot, but you might start at https://climatedataguide.ucar.edu/climate-data/global-temper...