Our verdict
The best time to visit Chattanooga is April
In the height of summer, temperatures in Chattanooga can reach a maximum of 33℃ (92℉). In the winter, temperatures can get down to -6℃ (22℉) around January.
If you want to get the most out of your time visiting Chattanooga, or you’re just afraid of the dark, the days in July are usually the longest between sunrise and sunset. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Chattanooga in December. Head over there in August instead if you want to increase your chances of not being rained on.
Keep reading to find out more detailed information about the seasons and climate in Chattanooga, as well as our favourite tools to help you find the best options for transport, accommodation, and much more.
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Chattanooga seasons
Before you continue, it’s important to know when the seasons are in Chattanooga as they might be different to yours depending on where in the world you’re travelling from. Chattanooga is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Chattanooga
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Chattanooga for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Chattanooga climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Chattanooga for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Chattanooga in January
- Average temperature: 3℃ (38℉)
- Average high temperature: 8℃ (46℉)
- Average low temperature: -1℃ (31℉)
- Average humidity: 76%
- Average sunny days: 15 days
- Average rainfall: 92mm (4") over 13 days
- Average snow days: 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Chattanooga in February
- Average temperature: 6℃ (43℉)
- Average high temperature: 11℃ (51℉)
- Average low temperature: 2℃ (35℉)
- Average humidity: 78%
- Average sunny days: 12 days
- Average rainfall: 104mm (4") over 14 days
- Average snow days: 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Chattanooga in March
- Average temperature: 10℃ (50℉)
- Average high temperature: 15℃ (59℉)
- Average low temperature: 6℃ (42℉)
- Average humidity: 79%
- Average sunny days: 12 days
- Average rainfall: 97mm (4") over 16 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in March, make sure you pack a warm jacket or coat.
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Chattanooga in April
- Average temperature: 15℃ (59℉)
- Average high temperature: 21℃ (70℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 76%
- Average sunny days: 13 days
- Average rainfall: 96mm (4") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in April, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Chattanooga in May
- Average temperature: 20℃ (68℉)
- Average high temperature: 26℃ (78℉)
- Average low temperature: 14℃ (57℉)
- Average humidity: 77%
- Average sunny days: 13 days
- Average rainfall: 87mm (3") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in May, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chattanooga in June
- Average temperature: 24℃ (75℉)
- Average high temperature: 30℃ (86℉)
- Average low temperature: 18℃ (64℉)
- Average humidity: 75%
- Average sunny days: 11 days
- Average rainfall: 64mm (3") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in June, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chattanooga in July
- Average temperature: 25℃ (77℉)
- Average high temperature: 31℃ (88℉)
- Average low temperature: 19℃ (67℉)
- Average humidity: 75%
- Average sunny days: 10 days
- Average rainfall: 91mm (4") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chattanooga in August
- Average temperature: 24℃ (76℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 19℃ (66℉)
- Average humidity: 75%
- Average sunny days: 13 days
- Average rainfall: 64mm (3") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chattanooga in September
- Average temperature: 21℃ (70℉)
- Average high temperature: 28℃ (82℉)
- Average low temperature: 16℃ (61℉)
- Average humidity: 76%
- Average sunny days: 16 days
- Average rainfall: 65mm (3") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in September, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
Chattanooga in October
- Average temperature: 15℃ (59℉)
- Average high temperature: 21℃ (70℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 75%
- Average sunny days: 19 days
- Average rainfall: 71mm (3") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in October, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Chattanooga in November
- Average temperature: 9℃ (48℉)
- Average high temperature: 14℃ (58℉)
- Average low temperature: 5℃ (40℉)
- Average humidity: 75%
- Average sunny days: 18 days
- Average rainfall: 69mm (3") over 10 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Chattanooga in December
- Average temperature: 6℃ (43℉)
- Average high temperature: 10℃ (50℉)
- Average low temperature: 2℃ (36℉)
- Average humidity: 80%
- Average sunny days: 15 days
- Average rainfall: 111mm (4") over 14 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chattanooga in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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