I went to York in November 2 years ago and it was a little bit floody by the river then (some hotels with underground carparks were a little damp, some picnic benches by the river were unfit for picnicing) but most of the city is built up on a hill, as most old cities tend to be.
YABU if you come in without checking the traffic situation first though! Depending on where you're coming from it may not be good. DH was stuck in a jam for 45 mins on the way home tonight because of bridges over the Derwent somewhere being closed. At least one of his colleagues couldn't get to work today from an outlying village on the Ouse.
Quite a few times this year on the way to school the bit near the Millenium bridge was completely underwater, with the bit going through the woods impossible to cross (tho it was fun trying....)....I dread to think what it's like now, when it's Officially flooding!
I live in an outlying village near the Ouse. Any more rain and I think we'd have been cut off. It already is taking more than an hour to get to York via diversions. However no one got hurt or killed and although there ha sbeen some damage to some properties, they can be fixed