Climate: Vienna is located in northeastern Austria, at the easternmost extension of the Alps in the Vienna Basin. The earliest settlement, at the location of today's inner city, was south of the meandering Danube while the city now spans both sides of the river. Elevation ranges from 151 to 524 m (495 to 1,719 ft).
Vienna lies within a transition of oceanic climate and humid continental climate, and features, according to the Köppen classification, a Cfb (oceanic) -climate. The city has warm summers with average high temperatures of 24 to 33 °C (75 to 91 °F), with maximum exceeding 38 °C (100 °F) and lows of around 17 °C (63 °F). Winters are relatively dry and cold with average temperatures at about freezing point. Spring and autumn are mild. Precipitation is generally moderate throughout the year, averaging 550 mm (21.7 in) annually, with considerable local variations, the Vienna Woods region in the west being the wettest part (700 to 800 mm (28 to 31 in) annually) and the flat plains in the east being the driest part (500 to 550 mm (20 to 22 in) annually). Snow in the winter is not uncommon, but rare compared to Western and Southern regions in Austria.
More information: VIENNA or AUSTRIA