In reply to springfall2008:
I climbed at Tremadog a couple of weeks back in early June the day after it had been lashing it down to the point where the road back up to Capel Curig was totally flooded in many places and fields turned into lakes.
We were on the Grim Wall area of Bwlch y moch and it was virtually dry apart from a little bit of seepage that kindly soaked the crux foothold of Meshach.