Taking Lots of Heat

I have a riddle: why does the sun feel hotter in summer, when the sun is nearer to us in winter? If you can tell me that, you win a cookie. Just like the title said, the forecast here is for blazing hot heat, and a month ago, up in the North part of Texas, the windchill drove the temps down into the 40's. What a state. It's true, if you don't like Texas, just wait around five minutes.