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
Shrinking cities were significantly affected by the weak economic situation they were left in after the fall of socialism. The reunification of European countries yielded both benefits and drawbacks. German cities like Leipzig and Dresden, for example, experienced a drastic population decline as many people emigrated to western cities like Berlin. Hamburg in particular experienced a population boom with record production yields in 1991, after the unification of Germany. Conversely, Leipzig and Dresden suffered from a failing economy and a neglected infrastructure. These cities were built to support a much larger population. However, both Dresden and Leipzig are now growing again, largely