Typical Weather in Chattanooga, TN in December
48° F Avg High
34° F Avg Low
8 Rainy Days
☀️ Temperature Summary
Highs in December are typically around 48°F, which is cooler than usual in Chattanooga. You can expect overnight lows near 34°F most days.
December is a great time to visit Chattanooga, with mild temperatures and sunny days being very common.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In December you can expect close to a 26% chance of rain for any given day. It rains more than usual in December, with total rainfall for the month typically near 6 inches.
Rainfall Throughout the Year
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