In (probably) most of northern Europe, it is somewhat cold and wet outside. Despite this fact, I'm trying to get as much outdoor climbing done as I can.
A backup plan for somewhat cold weather (i.e. around/slightly above 0°C) would be to try aid climbing, but we're wondering if this is a safe idea. My question is, as the title says:
Is mobile protection (i.e. nuts, cams, hexes etc.) less safe if the rock is (slightly or really) wet? Does this change if the temperature is around the freezing point? (Bonus points for references from official sources, e.g. manufacturers or climbing associations.)
This is not about heavy rain with water pouring down the rocks, but more about rock that hasn't completely dried from rainfall a few days past (or at most a light drizzle while climbing) where there might remain some really wet spots on the inside of some cracks or flakes. The temperature would be mostly above 0°C, but where one can't see beforehand with 100% certainty that there aren't any frozen spots in some of the cracks.