October in Centennial averages a daily high of 18.2°C with nights around 2.5°C. Expect roughly 5.8 wet days totalling 23mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Centennial is May–June.
Based on DENVER CENTENNIAL AIRPORT, CO US (3.2km), 1995–2024. 27 years of October data.