 About 15.6% of families and 20.0% of the population were below the poverty line, including 31.2% of those under age 18 and 10.9% of those age 65 or over.The climate in this area is characterized by hot, humid summers and generally mild to cool winters.According to the Köppen Climate Classification system, Clayhatchee has a humid subtropical climate, abbreviated "Cfa" on climate maps.