Coldest May since 2010 with high rainfall and very little sunshine
Offenbach, 31 May 2021 – April 2021 was much too cold in central Europe and the trend continued in May. This was caused by an extensive low-pressure system over northern Europe that drew in a continuous flow of cool Atlantic air along its southern flank. As a result, May 2021 was the coldest in Germany since 2010. All in all, the month was not only too cool but there also was little sunshine and very significant rainfall. Another feature was severe localised thunderstorms. Heavy rain, storm-force gusts and even an F1 tornado were recorded. This is the summary announced by the Deutscher Wetterdienst (DWD) after an initial analysis of the observations from its approximately 2,000 measuring stations.