The internet. Nuff said.
...Okay, okay. I'll be serious. One time, while driving to the mall, it was raining. However, it was the sunniest day ever. There wasn't a single cloud in the sky, and yet rain was still coming down. It was a short rain storm, didn't stop until moments before finally finding a place to park and getting through the maze-like drive ways. But still, very odd. What's next, a garden of flowers blooming while it snows?
Also, there was that one time it was snowing in spring. Probably not a big thing to anyone else (I didn't think anything of it), but my mother said it was a really rare occurrence in Texas, or at least in Abilene.
EDIT:
I just remembered something else. One time, me and my mother were driving to meet some relatives way out of town, living in the countryside. Total road trip. By the time we were getting close to where they lived, it was night, and let me tell you. Out in that open countryside, there isn't a single cloud, and the black night sky is full of billions of stars. Well, I was just watching the stars, and I swear to God, there were two clusters or constellations of stars that looked like a Tie Fighter and Darth Vader's Tie Fighter. If I had a camera, I would have taken a picture. Instead, I had to quickly sketch it down on a piece of paper. Not very convincing that way...