This past January we took our first trip in this month, 10 days before MLK day. We're fall people but we did go in late September and had AP's so decided to give January a shot to get another use out of our passes. Arriving day was real cold, steam coming off the pool, we stayed WL, but the water was like bath water. Next day temps soared back to the 80's, perfect weather, crowds were low and then marathon period came. It closed some routes around WDW, added quite a few more guests but all in all ,not to bad. Day before we were to leave, temp drops to the 60's, cold, glad we were leaving. All this said, would we go again in January, likely not, weather is just to iffy and we have enough cold and snow in Ohio in January, we look at Florida as the sunshine state and enjoy the heat so we'll skip the January WDW trip.