While the average price of a Christmas tree in 2018 was $76.35, there was great variation over time. On 11/23/18, Black Friday, the first major tree buying day, the average price was $79.11. It then peaked at $83.92 on 11/26/18, Cyber Monday. It then steadily declined to a low of $50.34 on Christmas Eve. The most popular day to buy a tree was Sunday 12/2/18, followed closely by Saturday 12/1/18.