Why does Lake Garda have a Mediterranean microclimate?

Answer 1

Lake Garda was formed by a huge glacier coming down from the Alps 1.5 million years ago!

So why is Lake Garda so fertile? Well, the as the glacier moved through the valley, it ground up loose magnesium-rich limestone into a paste, which placed itself along the sides of the ice. When the glacier melted, the moraine resulted in the rich fertile soil found along the shores of Lake Garda enabling things like lemon trees, orange trees, olive trees and many exotic flowers to grow.

July is the hottest month of the year at the average of 29 degrees! The temperature is the coldest in January at the average of 6 degrees, but it never gets very cold because: in the summer when it's really hot the lake warms up. Through the cold months it keeps its heat, and the heat floats up and warms the air.

Also the mountains above it keep it sheltered from wind.