The maps and data are courtesy of the Copernicus Climate Change service.
The data is freely available (with a registered account) through the Climata Data Store Toolbox. The Toolbox includes a (beta) Python API that lets you generate images, download files, and more with customized data processing.
The city names are courtesy of the GeoNames.org web site, a great resource for free geodata.
The tables are made possible by Derek Eder's awesome CSS to HTML converter.
A special thanks to all the scientists and developers whose hard work has made amazing tables like these available to the public!Visit data site!