That should be fine.
My last 2 visits in 2008 and 2010 were during the month of November and I usually wore a short sleeve shirt during the day, to the utter amazement of the locals.
Of course I'm from Canada where I was skiing just yesterday.
BTW, did Igawa's contract with the Yankees end this year?
His signing, along with Matsuzaka really left a sour taste for the MLB. It'll be interesting to see how high the posting fee for Yu Darvish will go.