The fertile soil and good growing climate were the main reasons that the Middle Colonies were more successful at growing crops than the New England and Southern Colonies. The land was also easier to expand than in the other colonies. In the New England Colonies, the soil was rocky and the growing season was short
These surfaces radiate heat, causing air temperatures around the city to rise. Even after the sun sets each day, the surfaces hold onto their heat, making it more difficult for the temperature in the city to decrease.