Nantes has an oceanic climate influenced by its proximity to the Atlantic Ocean. West winds produced by cyclonic depressions in the Atlantic dominate, and north and north-west winds are also common. The climatic conditions allow to be typically in this zone with almost no influence of the continent as in Paris, the city has strict variations of temperatures and few freezing days in average annual, in addition to a precipitation higher, but also being able to be described informally as a “Mediterranean altered” for 1971-2000 normals. Rainfall and its pattern exemplifies this (winters rainier than other seasons), although it is a relatively high total fall in every month (too high average temperature), but in the future may be closer to a dry summer defined if trends persist. Slight variations in elevation make fog common in valleys, and slopes oriented south and south-west have good insolation. Winters are cool and rainy, with an average temperature of 6 °C (43 °F); snow is rare. Summers are warm, with an average temperature of 20 °C (68 °F). Rain is abundant through the year, with an annual average of 820 millimetres (32 inches). The climate in Nantes is suitable for growing a variety of plants, from temperate vegetables to exotic trees and flowers imported during the colonial era.