It looks as if both home buyers and home sellers decided to really take some time off over the holidays - near record low sales in January were the result of very few purchase contracts written in the Thanksgiving through Christmas time frame. Traditionally, January is the month with the fewest sales and 2019 kept right on trend.
Much of the lower sales numbers can also be attributed the fact that there are fewer and fewer homes available in Northern Colorado, and many of those homes still active beyond the holidays could be overpriced, in poor condition, or were just not the right fit. To put a long story short - there aren't enough homes, and of all the homes left, they aren't all that exciting.