There was an interesting resource by Jim Lee a while back at one of his old websites https://weathermodificationhistory.com/

This link has since begun redirecting to the root of his primary website, where this resource is not immediately obvious https://climateviewer.com/

So, while updating bookmarks, it's going here for anyone not familiar with the history of weather modification documented publicly as going back to 1841 https://climateviewer.com/1841-james-pollard-espy-the-storm-king/

On a related noted, the United Nations signed a treaty during the 1970's in light of the US Air Force's deployment of Operation Popeye in the Vietnam war https://treaties.un.org/doc/Publication/MTDSG/Volume%20II/Chapter%20XXVI/XXVI-1.en.pdf

This treaty is only effective with regard to use against foreign countries, mind you..

There are numerous states in the US that have their own departments dedicated to weather modification - one example can be found here https://www.tdlr.texas.gov/weather/

Other states are less obvious, operating weather modification programs under things like water districts https://sawpa.gov/santa-ana-river-watershed-weather-modification/

That's old news, though https://www.sacbee.com/news/local/article2582372.html

Meanwhile, other projects are organized under multi-state membership organizations http://www.nawmc.org/

So, for those interested, now there's an overview on some of the known weather modification programs with examples