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
German frigate Hamburg March and 3 June 2013 "Hamburg" deployed with the carrier combat group, and was tasked with co-ordinating all flight movements within a radius of 180 km, including all take-offs and landings on the carrier. "Hamburg" was the first German ship to fully integrate into an American Strike group, and it was the first time in the history of the US Navy that a German frigate was entrusted with the sole protection of an American aircraft carrier. On 11 February 2014 "Hamburg" deployed from Wilhelmshaven with the frigates "Mecklenburg-Vorpommern" and "Augsburg", the corvette "Oldenburg " and the storeship "Frankfurt am Main"