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Tropical savanna climate or tropical wet and dry climate is a tropical climate sub-type that corresponds to the Köppen climate classification categories Aw (for a dry "winter") and As (for a dry "summer").
Tropical savanna climates are relatively hot since they lie within the tropical latitudes. Throughout the year, mean monthly temperatures soar above 64 °F (18 °C). The dry season in savanna grasslands is cooler than the wet season by a few degrees.
In general, savannas grow in tropical regions 8° to 20° from the Equator. Conditions are warm to hot in all seasons, but significant rainfall occurs for only a few months each year—about October to March in the Southern Hemisphere and April to September in the Northern Hemisphere.
Tropical savannas are typically found near the equator and experience distinct wet and dry seasons that support a diverse range of wildlife and dense grasses.
Also known as the "Savanna" climate, it supports a ground cover of drought resistant grasses with scattered trees, but not enough rainfall to make agriculture a viable, life sustaining activity. The Tropical Wet/Dry climate lies at latitudes of about 5 o - 10 o and 15 o - 20 o.
Climate: A tropical wet and dry climate predominates in areas covered by savanna growth. Mean monthly temperatures are at or above 64° F and annual precipitation averages between 30 and 50 inches. For at least five months of the year, during the dry season, less than 4 inches a month are received.
The tropical savanna biome is characterized by two distinct seasons in regard to precipitation; the dry season and the wet season. The dry season typically occurs from October to January and typically experiences just 4 inches of rainfall.
The Tropical Wet/Dry climate is the driest of the tropical wet climates. Like the monsoon climate, it has a distinct seasonality to its precipitation. However, its wet season is much shorter and receives far less precipitation than the monsoon climate.
The tropical wet-dry climate is abbreviated Aw in the Köppen-Geiger-Pohl system. Temperatures in tropical wet-dry climate regions are high throughout the year but show a greater range than wet equatorial (Af) and Am climates (19–20 °C [66–68 °F] in winter and 24–27 °C [75–81 °F] in summer).