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 Saxon monarchs, which is why the outskirts are often named after sovereigns. From the 19th century the city grew by incorporating other districts. Dresden has been divided into ten districts called "Ortsamtsbereich" and nine former boroughs ("Ortschaften") which have been incorporated. The population of Dresden grew to 100,000 inhabitants in 1852, making it one of the first German cities after Hamburg and Berlin to reach that number. The population peaked at 649,252 in 1933, and dropped to 450,000 in 1946 because of World War II, during which large residential areas of the city were destroyed. After large incorporations and city