Leaflet Javascript climate map

Hi, I am looking for someone to help out with a leaflet climate map of mine. I want to show the average temperature / month on a global level. The month from jan til december should be changeable on a slider / timeline. The map should than adjust accordingly the temperatures globally via color scheme adjustment . Here is an visual example I like (only need temperature and no need for current weather data): [login to view URL];33;2&l=temperature-2m&t=20190123/0200 Here would be a simpler example (this one shows projections til 2099): [login to view URL] I would have a dataset of average temperatures / city / month if needed though I am not clear how this would have to be adjusted to fit the final result. Obviously there are quite some examples to build on / reuse, which is why the work should be done under an hour. Let me know what you think. timo