In reply to CL1MB0N:
> So Dinas Mot and Cromlech over Cloggy. That is a surprise but great to know, thanks! Where do you recommend in the Quarries for some sport/trad?
It's mostly about conditions - May in North Wales can bring consistently warm dry weather, mostly dry weather with occasional showers, mostly wet weather with occasional breaks or seemingly endless mingingness.
By and large, the higher crags and more North facing crags take longer to dry, while lower crags and more South facing crags (and slate, which is magic) dry quicker, and stuff outside or on the edge of the main bulk of the mountains (including slate, Tremadoc, Anglesey, the Orme, the Moelwyns) gets less rain than stuff right in the middle (like Cloggy, the Pass, Tryfan etc).
What Jon's saying is that you might get the long period of warm dry weather over the mountains that it takes to get up to Cloggy (high, North facing), but if you've got your heart set on it then you might be disappointed. Whereas if you've got dream routes on other venues in the pass then you'll probably get some of them done even if the weather's a bit patchy. Similarly, if you've got some stuff you want to do on slate, Tremadoc, the Orme, the Moelwyns etc then it's less likely to have been rained on in the first place. So by all means come up with stuff you want to do on Cloggy, Lliwedd, Clogwyn y Ddysgl and so on, but be aware of what sort of conditions you need to have had for it to be practical - otherwise you could end up at best disappointed or at worst wasting a day walking in to a dripping wet crag.
Your guidebook should be good on which crags dry quickly, but the basic rule is to watch out for high and North facing. Also if it's iffy then there's an argument for doing stuff that's closer to the road so you don't waste a long walk in if you make the wrong call.
Post edited at 15:15