January in Centennial averages a daily high of 7.1°C with nights around -7.1°C. Expect roughly 4.4 wet days totalling 9.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Centennial is May–June.
Based on DENVER CENTENNIAL AIRPORT, CO US (3.2km), 1995–2024. 26 years of January data.