define subtropical
Subtropics The subtropics are geographic and climate zones located roughly between the tropics at latitude 23.5Â° and temperate zones north and south of the Equator. Subtropical climates are often characterized by warm to hot summers and cool to mild winters with infrequent frost. Most subtropical climates fall into two basic types - humid subtropical, where rainfall is often concentrated in the warmest months and dry summer, where seasonal rainfall is concentrated in the cooler months. Subtropical ...