Montreal's P.K. Subban had a goal and two assists, including a tying goal with 2:18 remaining in the second period.
Tyson Barrie gave Colorado a 1-0 lead 12:59 into the first period. Max Pacioretty scored for Montreal to tie the game 8:07 into the second before Gabriel Landeskog put Colorado back in the lead at 10:18.
Reto Berra made 33 saves for the Avalanche.