Which area of the Coastal Plains region in Texas is the driest

The Coastal plains regions in Texas swing from rolling hills to completely flat, which makes it suitable for farming and ranching.

South Texas Plain is the driest, extending up to the Lower Rio Grande valley, especially the area along the Mexican border with a semi arid climate, the vegetation comprises plants that require lesser water such as th*rny brush and spiky cacti.

This is the driest region in Texas. The average yearly rainfall is only 0 - 16 inches. The Coastal Plains region is the largest and most varied region in Texas. It is part of the North America's larger Gulf Coastal Plains region.