In reply to ctodd:
High chance of good cragging weather the majority of the time.
Temperatures in the sun are likely to be fine but may be a bit warm for some; however, there's plenty of scope for choosing sunny or shady crags.
Almost all climbing will be in and around the valleys rather than higher up on mountains, but this includes the vast majority of single-pitch crags and a fair few multi-pitch options too.
High chance of at least some bad weather if you're there for a while - residual winter weather patterns often come through quite frequently that time of year so (generalising a lot) stable weather is likely to last 3-7 days and be interrupted by wet and/or cold spells lasting 1-3 days. It is possible, but happens rarely, to see a more prolonged wet spell in March, i.e. 5 days or more of wet weather. In the last 8 years we've only seen this happen once.
There are a few places you still can climb in bad weather, at least if you're climbing 6s - much more if you're doing 7s or 8s.
Ski resorts nearby are likely still to be open.
To summarise, most likely you'll be able to climb most, if not all, of the time, but it could be pretty cold for cragging during bad weather spells and there's a very small chance of widespread seepage. Conditions later in the Spring may be more reliable, mainly because it's warmer on cloudy/wet days but after April it's usually too hot to climb in the sun.
