You are right to worry about tumbleweeds and rattlesnakes! If you live in Dallas and don’t get out of town, you should be ok; but be careful if you take road trips. I was hit by one of those tumbleweeds in west Texas a while back & it pushed me into the next lane of traffic; then I was in Galveston the other day & I hit a rattlesnake in the road that was so big that I had to realign my Vette when I got home. Things really are bigger in Texas!!! By the way, don’t worry about the heat … that is what air conditioners are for.
But you forgot about armadillos and possums! Now this IS a true story. A couple of years ago, I was driving home at night and there was a possum in the road couldn’t decide where he wanted to go (and it was a four-lane road). I saw him well ahead of me and changed lanes. Unfortunately, at the last minute, he ran back into my lane, under my Vette, and damaged one of my side panels … not much room for error under a Corvette!
Enjoy Texas; the place is huge and has a variety of scenery … from deserts in the west, to mountains in the southwest, to the coast & beaches in the southeast, to forests in the east, not to mention to numerous lakes. The people are friendly and the taxes are low (except for the damn property taxes) … it is a great place to live.