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
Hamburg is made up of seven boroughs (German: "Bezirke") and subdivided into 104 quarters (German: "Stadtteile"). There are 181 localities (German: "Ortsteile"). The urban organization is regulated by the Constitution of Hamburg and several laws. Most of the quarters were former independent cities, towns or villages annexed into Hamburg proper. The last large annexation was done through the Greater Hamburg Act of 1937, when the cities Altona, Harburg and Wandsbek were merged into the state of Hamburg. The "Act of the Constitution and Administration of Hanseatic city of Hamburg" established Hamburg as a state and a municipality. Some of the boroughs