Can snow be dry?
Disclaimer: There are a lot of questions packed in but their answers are interdependent.
Different textures of snow can be described as "wet" and "dry". Considering that water is the quintessence of wetness and snow is water, is it accurate to describe snow as being dry?
Is there a fallacy in the above syllogism because water in its frozen form is not water but ice and therefore even though snow is made of water it is not the case that it is water?
If so, is wetness a property that can only exist in non-freezing conditions?
Are all of the above questions predicated on the false assumption that the adjective "dry", when applied to snow is intended to be literal when in fact it is figurative?
Solution 1:
Dry means (NOAD here, but others would give similar definition) “free from moisture or liquid”. Snow is a mixture of ice crystals (a solid form of water), liquid water, and some water vapour (usually in negligible amount due to the temperature). So, snow is dry if it's mostly composed of ice crystals, and wet if it has an important part of liquid water mixed in.
In that sense, wet is somewhat synonymous with slushy.
Solution 2:
Ice could be dry (even if it isn't carbon dioxide ice) if it is so cold that there is no discernable trace of water on it, and so could snow if it were the fluffy powdery kind rather than the slushy kind.
Wet usually means having liquid water about (sometimes other liquids) either literally or figuratively. It might even mean having water vapour around (wet gases). Also, being made from water doesn't mean something is water; people are chiefly water and are not normally described as wet, except in a figurative sense as I mentioned earlier.
Solution 3:
If wine can be dry (even though it's indubitably a liquid), then snow can be too. In the first case, dry is meant in a sort-of-figurative sense (it has a dry taste); in the second it means that it's not sticking together as a liquid or semi-liquid would - it's "dry" like a powder.