I can understand how you feel about going on a trip when your husband is in the midst of changing jobs! So, if you can wait a few months, anytime in January after MLK day until the first week or so in February is a great time to go. Granted, there may be a couple of rides undergoing rehab and the hours may be a bit shorter than you are used to, but the crowds are non-existent. We've been lucky with the weather that time of year, mid-70's, but it can be cooler so you need to be prepared with warm clothes.
Good luck!