Current Weather and Forecast in Chattanooga, TN
Tennessee, United States 🇺🇸
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Explore Chattanooga's typical temperatures and climate below - Live data returns shortly.
About the weather in Chattanooga
Chattanooga has a humid subtropical climate. July is the warmest month, with average highs of 88°, and January the coldest, when nights fall to around 33°. February brings the most rain, on about 13 days, while June is the sunniest, with 11.6 hours of sunshine a day. Over a whole year it rains on roughly 137 days.
Chattanooga climate guide: monthly averages, seasons and the best time to visit
Common questions
What is the rainiest month in Chattanooga?
February, at 6.3 inches (160 mm) over about 13 days. October is the driest month, at 3.7 inches (94 mm).
Is there snow in Chattanooga?
Yes - about 2 days a year carry measurable snowfall, concentrated January through February.
How warm is Chattanooga on average?
61°F (16°C) across all twelve months - about 71°F (22°C) by day and 53°F (11°C) after dark.
How long does summer last in Chattanooga?
Average highs hold at 30°C or above for 2 months of the year. Outside that, January pulls back to 50°F (10°C).
When should I visit Chattanooga?
September to November and April to May is the sweet spot for Chattanooga - warm days, manageable rainfall and plenty of daylight line up. Expect 73°F (23°C) in the afternoon and around 9 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in September.
When is Chattanooga at its hottest?
July, averaging 88°F (31°C) by day and 71°F (22°C) overnight. The hottest single day in our 2015-2024 record for this location reached 99°F (37°C).
When is Chattanooga at its coldest?
January, with highs of 50°F (10°C) and lows near 33°F (1°C). The coldest day in the 2015-2024 record fell to 5°F (-15°C).