 Winters can become snowy, as extratropical cyclones carry moist and cool air from the North Atlantic.The municipality of Esino Lario was created in 1927 by the merger of the municipalities of Lower Esino and Upper Esino.The last glaciation of the quaternary period, the Würm, began 70,000 years ago covering the Como area, and it profoundly changed the land's appearance – shaping the sides of the mountains, creating fertile moraine terraces, leaving many signs of its passage with boulders.