3.5nd dnd – Is there anything that never melts the snow?

In order to make the Snowcasting feat more useful in warmer regions or during warmer seasons, I am looking for a source of snow or ice that never melts.
It can be a spell that enchants snow or ice in a (preferably permanent) way, or snow or ice that never melts for one reason or another.
It could also be a magical object made from snow or ice – as long as it meets the standards of this feat and does not melt in warmer climates.

Is there such a thing in D & D 3.5 and, if so, what means would be available to obtain it?