Countries, regions, cities and places in Europe with the most and least thunderstorms?

[Varda]

It seems Udine and Sofia are in the top in Europe among bigger cities by thunderstorms on average.

Central Europe https://www.severe-weather.eu/wp-con...s/Figure11.png

Southeastern Europe https://www.severe-weather.eu/wp-con...s/Figure13.png

Eastern Europe https://www.severe-weather.eu/wp-con...s/Figure12.png

Northwestern Europe https://www.severe-weather.eu/wp-con...s/Figure10.png

Northern Europe https://www.severe-weather.eu/wp-con...ps/Figure9.png

South-central Europe https://www.severe-weather.eu/wp-con...s/Figure14.png

Southwestern Europe https://www.severe-weather.eu/wp-con...s/Figure15.png

Sarajevo is probably more prone to thunderstorms than Sofia, because has higher amount of precipitation and more rainy days from May to September on average.
https://en.wikipedia.org/wiki/Sarajevo#Climate
https://en.wikipedia.org/wiki/Sofia#Climate

[Varda]

Dinaric region in western Balkans is prone to thunderstorms for European standards.