Answer:
My days are numbered.
I am all around you but you cannot see me. I have no throat but you can hear me. Valued during summer but despised in the winter.
I am higher than the king
I can be hairy and itchy all over. I hang on a stick. I can be the scariest thing you have ever seen. I stand in the middle of nowhere.
I am easy to waste and unstoppable
It's what light turns into in the night