I was curious as to whether anyone knows how long the average named storm/hurricane lasts, if there is an average? Irene seems to have been around now for, well it seems to be pushing a couple weeks now, is she pushing some kind of record for duration, if there is such a thing? I guess my question is what is the longest a storm/hurricane has lasted from naming untill it's dissapation.
Any response will be appreciated, thanks.

...Chris in Pacific Northwest