daugen;
Yes, Texas has several regions. This year, I think they are all similar though, as they are all DRY. But, if this pattern ever breaks, Southeast Texas is known for high humidity and warmth. The year that I worked in the Houston and Beaumont areas, it rained a little shower, almost daily, in the summer afternoons. But that area is normally lush and green, if you get away from the cities and the concrete. I've only spent weekends in the northeastern part of the state, for dog shows, etc., so will let someone else speak of the area, that has seen all of the seasons there.
Fort Worth is known as "Where the West Begins". As one goes west from there, things become more arid, as a rule. On good years, the counties just a few west of FTW still get rain, and have some green, but they also have trees and shrubs that are more adapted to the arid conditions, such as mesquite, Texas Bird of Paradise, etc. The farther west one goes, the more arid it becomes, and the more rugged, and sometimes amazing, the scenery gets, once you are past the long (approx. 4 hours, but seems longer), tedious drive between Parker County and the Permian Basin. Good things now, is one has a legal speed limit of 75 in many areas, so the drive isn't as mundane now. farther west gets more mountains, etc., even if not the tyope you will see in Colorado, Wyoming, etc.
Central Texas, near the Austin area, and west, is also known as the Edward's Plateau. It too can be rugged, and has what some might call, "mountainettes". There are some bluffs, and a LOT of rocks. All sizes of rocks! Near San Saba (still in the Edward's Plateau), there are rivers, creeks and good pastures, if they get rain. San Saba is also the Pecan Capital of the World! One finds pecan trees, that are over 100 years old, growing near the rivers and creeks. The soil is fertile, as even when pastures seem scarce, cattle stay fat on it. It is a region also known for having sheep and goats.
Far south Texas, is known as "The Valley". Temps are moderate, in the winter, and Texas produces some of THE BEST oranges and grapefruit, in that region. Again, I have only stayed in the region for short periods of time, and that was years ago, so I'll leave that area for others that have more firsthand knowledge to discuss.
Maybe you can come see some of Texas for yourself, some Spring or Fall, in your motorhome! As the saying goes, "It's like a whole "nother country!"
