Why do I sing better in cold weather?

I'm a 15 year old male from Maine, and I've been singing for all of my life. Every time that I try to sing in warm weather, I can only reach notes that males would normally reach. My highest note in my falsetto is a couple notes above the B flat in Bohemian Rhapsody ("... for MEEEE!!!!"), and my highest note in my full voice is C5, which is also the highest note in "Who's Crying Now?" by Journey. The only time that i seem to be able to reach these notes is when I'm singing outside in the cold. Why is this?

Also, I don't exactly warm up before singing, which I'm aware is not the best idea for a devout singer like myself to do. Instead, I sing "Sweet Child O' Mine" in the same key and vocal styling as Axl Rose did on Appetite For Destruction. I know that everyone thinks that singing like him is the worst thing I could EVER do, but, it doesn't hurt when I do it; it actually seems to clear my throat and help me reach my high notes. Why is this?! I don't know ANYONE else who does these things like me! Lemon and room-temp water makes my throat all mucusy and hard for me to sing, and hot tea does the same. Soft Drinks HELP me sing! What makes me so different?!Why do I sing better in cold weather?
cold makes the vocal cords constrict, whether it's cold air passing over them or cold water on them. the constriction helps you hit those high notes coz after all, it's a tightly stretched vocal cord that makes a high pitch.Why do I sing better in cold weather?
maybe it's all in your body chemistry. Perhaps your vocal cords are naturally looser, and therefore you need to tighten them up to produce a more controlled sound? I don't know how these things work at all - no clue at all. Just a thought.Why do I sing better in cold weather?
Because YOU are Optimus Prime.
one thing i can i think of is that in cold weather your lungs open up more