In reply to chaotic_chris:
If it rains, why not do some classic easy mountain routes like Amphitheatre Buttress, Grooved Arete, Spiral Stairs, Flying Buttress. Climbing in the rain is good practice so that you can cope in the event of unexpectedly being caught out by bad weather whilst in the middle of a mountain route. With modern wet weather gear it's not too much of an issue, and you are likely to have the crags to yourselves and avoid queues.
I've done all of the above in rain.