Weather By Day

August Chattanooga Weather 
August Chattanooga Weather
Record High: 105°F
Normal High: 89°F
Normal Low: 68°F
Record Low: 50°F
Avg Monthly Rain: 3.59"
Rec 1 Day Rain: 3.63"

Chattanooga Weather In August

In the last 71 years the highest measured August temperature in Chattanooga was 105 degrees Fahrenheit, most recently measured on August 22, 2007, while the mean high temperature is 89. The coldest day reported in Chattanooga in August for the past 71 years was 50 most recently encountered on August 31, 1946, and the regular low is 68.

According to National Weather Service Chattanooga August Weather data, on August 28, 1944, the recorded high temperature did not exceed 66 degrees Fahrenheit, the lowest high measured in Chattanooga in the past 71 years. Weather Service records also indicate that on August 23, 1968, the low temperature for the day was not measured below 80 degrees, the highest low measured in Chattanooga in the last 71 years.

NWS data indicates that the daily high temperature in Chattanooga on August First averages 90 degrees Fahrenheit and the high on the last day of August averages 87 degrees. The average daily low temperature in Chattanooga on August First is 69 degrees Fahrenheit and the average low on the last day of August is 67 degrees.

Chattanooga usually receives an average of 3.59 inches of precipitation during August. The most precipitation measured in a single day, as indicated by August Chattanooga Weather data, was 3.63 inches on August 5, 1941.