Current weather conditions temporarily unavailable!

Key findings

  • The highest monthly average temperature in Chattanooga for August is 79.7 degrees
  • The lowest monthly average temperature in Chattanooga for January is 41.2 degrees
  • The most monthly precipitation in Chattanooga occurs in December with 6.5 inches
  • The air quality index in Chattanooga is 8% better than the national average
  • The pollution index in Chattanooga is 90% better than the national average

Compare Chattanooga, TN Weather

      vs
      How would you rate the weather in Chattanooga?
      Write a review to give others more information about this area.
      How would you rate the air quality in Chattanooga?
      Write a review to give others more information about this area.
      See all Chattanooga poll results

      Chattanooga Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January31°F54°F41°F5.0"
      February32°F57°F44°F3.9"
      March41°F67°F53°F4.8"
      April49°F77°F62°F6.0"
      May57°F83°F69°F3.7"
      June66°F91°F78°F3.4"
      July70°F92°F80°F5.5"
      August70°F92°F80°F4.2"
      September63°F87°F73°F4.5"
      October50°F76°F62°F4.3"
      November38°F65°F51°F4.5"
      December35°F56°F45°F6.5"

      Chattanooga air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexChattanoogaTennesseeNational
      Air quality index467650
      Pollution index271,3562,454,9162,726,193

      Chattanooga air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality230
      Days with moderate air quality135
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Chattanooga air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Chattanooga temperature with heat index

      Chattanooga monthly precipitation with daily maximum

      Chattanooga monthly snow depth with daily maximum

      Chattanooga monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fairview, GA7,843468.0%
      Lookout Mountain, GA1,754468.0%
      Collegedale, TN10,438468.0%
      Harrison, TN7,564468.0%
      Middle Valley, TN12,699468.0%
      Chattanooga, TN175,462468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Port St. Lucie, FL175,6523628.0%
      Fort Lauderdale, FL175,1534118.0%
      Oshawa, ON176,009n/a 
      Tempe, AZ174,7087448.0%
      Garden Grove, CA174,6767244.0%
      Chattanooga, TN175,462468.0%
      Source: The Chattanooga, TN weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.