Precipitation evenly distributed during the year, although the summer is usually slightly wetter. is more intense in the Prealpine zone, up to 1,500 to 2,000 mm (59 to 79 inches) annually, but is abundant also in the plains and Alpine zones, with an average of 600 to 850 mm (24 to 33 inches) annually. The total annual rainfall is on average 827 mm (32.6 inches).[9] Snow is quite common between early December and early March in cities like Turin, Milan and Bologna, but sometimes it appears in late November or late March and even April. Both the Alps and the Apennine can see up to 500–1,000 cm (200–390 inches) of snow in a year at 2,000 m (6,600 feet); on the highest peaks of the Alps, snow may fall even during mid summer, and glaciers are present.