I run weather data API (oikolab.com) focusing on historical data. Take a look at weatherdownloader.oikolab.com or climate-explorer.oikolab.com for examples and

I run weather data API (oikolab.com) focusing on historical data. Take a look at weatherdownloader.oikolab.com or climate-explorer.oikolab.com for examples and feel free to reach out if you'd like to try playing with the data for visualization. The data is from ECMWF and goes back to 1950 (I process them to make it faster to access as time-series).