I silence rivers, lock the lake, yet vanish when the warm winds wake.

In the grass I stand so bright, A yellow sun in morning light. But when I turn all white and gray, You’ll huff and puff me far away.

Find me in caves Along with my brother Don't mix up our names We're not one another We may both be sharp And hard to recall I'm surely the best And above it all

I’m easy. I’m always at the beach. I make July - or January - bearable.

I crinkle, shine, and swish about when rainy clouds come drifting out. You wear me when the raindrops fall, what am I that shields it all?