Rainfall in Germany

270 liters per m² rain fell in Germany during this summer. 

By the way, that’s about 10% more than in the reference period 1961-1990. There were some events with heavy rain and hailstorms and the peak rainfall was at the Alps with up to 600 l/m². 

Source: https://www.dwd.de/DE/presse/pressemitteilungen/DE/2023/20230830_deutschlandwetter_sommer2023_news.html