Geography and urban development of Dresden temperatures are almost the same as those in cities in southwest Germany; on average 10.2°C per year. In hot summers, Dresden is between the hot Lusatia and the milder Ore Mountains. Both regions are characterised by strong winters: temperatures of −20°C are not impossible in Dresden. The driest months are February and March, with precipitation of 40 mm. Spring months have often been arid in the last couple of years (with less than 10 mm of precipitation). The most precipitation falls in July and August, at 60 mm per month. Due to its location on the banks of the Elbe
Dresden Dresden twinned with the Dutch city of Rotterdam. The Coventry Blitz and Rotterdam Blitz bombardments by the German Luftwaffe are also considered to be disproportional. Dresden has had a triangular partnership with Saint Petersburg and Hamburg since 1987. Dresden has 14 twin cities. Carl Maria von Weber and Richard Wagner had a number of their works performed for the first time in Dresden. Other famous artists, such as Ernst Ludwig Kirchner, Otto Dix, Oskar Kokoschka, Richard Strauss, Gottfried Semper and Gret Palucca, were also active in the city. Dresden is also home to several important art collections, world-famous musical ensembles,