January in Chattanooga averages a daily high of 7.4°C with nights around -1.5°C. Expect roughly 11.6 wet days totalling 140.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Chattanooga is April–June.
Based on LOOKOUT MTN POINT PARK, TN US (5.1km), 1995–2024. 25 years of January data.