Answer:
60°
Explanation:
The latitude of 60° is the region where the polar easterlies interacts with the westerlies, and give rise to the formation of a polar front. The polar easterlies are the cold air current moving from the polar region to the 60° latitude, whereas the westerlies are the mid-latitudinal warm air current moving from the smaller latitudes to the 60° latitudes. This collision of two types of distinct wind pattern creates a very strong and effective temperature gradient, thereby causing stormy and cloudy weather with variable winds throughout the year.