It is in the southern coast lands that the climate has the greatest impact on human geography. There are several factors which affect human activity, humid subtropical climate, a long growing season, mild winter temperatures, and warm, humid summers. There are nine months or more of potential growth for agricultural crops for almost the whole region of the southern coast lands. The average annual rainfall is more than 125 centimeters, mostly between April and October. When warm temperatures support plant growth and sunlight is plentiful, it is enough rain for most agricultural activities for almost the entire region. These climatic conditions have brought forth two important results. Farmers can grow their crops until late in the fall without fear of frost, as long as agricultural conditions are met. I mean as long as there are fertile soil control of insect pests and appropriate ground drainage, it has even been possible to harvest two crops, and sometimes more for vegetable farmers. Of greater importance is the fact that there is the chance to produce specialty crops that cannot be produced in other parts of the united states.