As I said in the other weather thread (page 2), Bledsoe is a pretty bad poor weather QB. Just because he played in some northern cities doesn't mean that he plays well in bad weather. Claiming that Bledoe's experience in Buffalo and New England somehow makes him a better poor weather QB is like claiming that all Canadiens should be great hockey players because it's on ice.
People always point to Bledsoe's second half collapses as proof that he doesn't have the intestinal fortitude to win big games, but a compelling argument can be made that he performs more poorly in the later stages of the season because roughly half his games have been in northern climes in December.
That's not really a knock on Bledsoe, as Aikman's problems with wet balls have been well documented. It all has to due with a particular QBs grip and how that corresponds to a slippery ball. In a nutshell, the tighter the grip, the more errant throws in poor conditions but fewer fumbles in good conditions.
Bledsoe's fumbles per sack ratio is something to be commended but look no further back than the Seattle game to find out how he does in less than perfect conditions.