I recall my daughter's Texas friend telling me that the toughest thing about riding through Texas is getting out of Texas. It's one big state and they do everything big in Texas.
I rode from Oklahoma Springs to San Antonio in the middle of summer one time when it was about 106 deg or more. The heat and humidity got the best of me and I had to pull over and stop for the night just short of SA at a little motel with a swimming pool. I jumped into that pool and the water was warm.