Your realtor will tell you that winter is usually the cheapest time of year to purchase a home. If someone is selling during the winter and the holidays they are typically very motivated to make it happen fast.
You can be the person who buys your home faster and for less because you’re willing to do it when most other people aren’t. Buyers will be scarce, so if you’re willing, you will have less competition, and prices may be lower than in the spring. Sellers will be eager to get you into their home for a showing, so work closely with your real estate agent to see available homes.
One clear advantage of buying a house in the winter is getting the see the house during the harshest weather months. How sturdy is it? Do the windows have drafts? Are their roof leaks? How well does the heating system work? These things will be more obvious during the winter. Your real estate agent will likely be able to devote more time to your home search and buying process this time of year as well.