subtropical

The word "subtropical" describes areas and climates that lie between the tropical regions near the equator and the temperate zones farther north or south. It suggests warmth, but not the constant equatorial heat of the tropics. In many cases, it also suggests a long growing season and winters that are mild rather than severe.

These areas typically have warm to hot summers and mild winters, with frost being rare or limited. Some subtropical regions are humid, rainy, and full of dense plant growth, such as parts of the southeastern United States. Others are much drier, such as some areas around the Mediterranean or parts of Australia. Because of that, the word does not always mean humid; it more broadly refers to this warm belt between tropical and temperate conditions.

The term is not limited to temperature alone. It can also describe ecosystems, plants, and weather systems connected with these regions. A subtropical forest, for example, may include evergreen trees, palms, thick shrubs, and other plants that do well in warmth. Many crops, including citrus fruits and tea in some parts of the world, grow well in subtropical conditions because the warm season lasts for a long time.

"Subtropical" can also describe weather phenomena. A "subtropical cyclone," for example, is a storm that forms over warm waters and has features of both tropical cyclones and systems usually found in the middle latitudes.

So, whether you are talking about climate, plant life, or a type of storm, "subtropical" points to a region or condition shaped by warmth and its place between the tropics and the temperate world. It often brings to mind mild winters, long warm seasons, and landscapes that can range from lush and green to dry and sunny.