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 according to the Köppen classification. The city has warm summers with average high temperatures of 22 to 26 °C (72 to 79 °F), with maxima exceeding 30 °C (86 °F) and lows of around 15 °C (59 °F). Winters are relatively cold with average temperatures at about freezing point, and snowfall occurring mainly from December through March. Spring and autumn are cool to mild. Precipitation is generally moderate throughout the year, averaging 620 mm (24.4 inches) 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)