I am thinking about spending about 5 days in DL in January. I have kids of 9, 6 and 4. We will be coming from Oregon, so I am sure the weather will be better than our conditions, but how will it be? Also is it better to go during this time for price and crowds instead of summer or spring break for weather? We went in May two years ago and had a blast, but our schedule doesn't allow that next year. Thanks for the help in advance. 
