ClimateForecastNovemberDecember >>

Chattanooga (TN) Climate by Month

The temperature in Chattanooga can vary greatly throughout the year. The temperatures shift from very warm to cold. It also experiences much rain/snowfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Depending on the time of the year, temperatures range from very warm to chilly in Chattanooga. Average daytime temperatures reach a very warm 32°C in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C. At night, expect cooler temperatures, averaging -1°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Chattanooga has a relatively rain/snowy climate with high precipitation levels, averaging 1365 mm of rain/snowfall annually. Chattanooga experiences moderate seasonal variation in rainfall, with monthly averages ranging from 155 mm in December, the wettest month, and 84 mm in June, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Chattanooga can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Chattanooga in the United States of America

During the months of April and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Chattanooga?
    August has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Chattanooga?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Chattanooga?
    December tops the wettest month list with 155 mm of rainfall.
  • Which is the driest month in Chattanooga?
    June is the driest month with 84 mm of precipitation.
  • Which is the sunniest month in Chattanooga?
    May is the sunniest month with an average of 277 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Chattanooga (TN)

    Fri   Nov 22
    11°C | 4°C
    NW 18 km/h
    almost clear and no rain

    almost clear and no rain

    Sat   Nov 23
    13°C | 4°C
    NW 7 km/h
    almost clear and no rain

    almost clear and no rain

    Sun   Nov 24
    17°C | 3°C
    S 7 km/h
    almost clear and no rain

    almost clear and no rain