<P> Texas' weather varies widely, from arid in the west to humid in the east . The huge expanse of Texas encompasses several regions with distinctly different climates: Northern Plains, Trans - Pecos Region, Texas Hill Country, Piney Woods, and South Texas . Generally speaking, the part of Texas that lies to the east of Interstate 35 is subtropical, while the portion that lies to the west of Interstate 35 is arid desert . </P> <P> Texas ranks first in tornado occurrence with an average of 139 per year . Tropical cyclones can affect the state, either from the Gulf of Mexico or from an overland trajectory originating in the eastern Pacific Ocean . Those originating from the Gulf of Mexico are more likely to strike the upper Texas coast than elsewhere . Significant floods have occurred across the state throughout history, both from tropical cyclones and from stalled weather fronts . </P>

What kinds of climates are found in texas
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