How can i lose my belly fat, and leg fat safely?

I’m 15 years old, I’m not entirely FAT, but i have some extra weight on my belly and my legs. I’ve been searching the internet for a while, and all i could find were stupid crash diets and books i had to purchase for a ridiculous price.

So, how can i lose that extra fat?
I love jogging and everything, but I live in Michigan. There is currently 6 inches of snow where I live, and there isn’t an indoor center i can run at within half an hour.