Weather By Day

September Weather In Chattanooga  
September Chattanooga Weather
Record High: 102°F
Normal High: 82°F
Normal Low: 62°F
Record Low: 36°F
Avg Monthly Rain: 4.31"
Rec 1 Day Rain: 6.37"

Chattanooga Weather In September

The hottest September day in Chattanooga for the past 71 years was 102 degrees Fahrenheit, on September 3, 1954, and the standard high is 82. The lowest measured temperature in Chattanooga for the last 71 years in September was 36 on September 30, 1967, while the typical low recorded temperature is 62.

National Weather Service historical Chattanooga September Weather data indicates that on September 23, 1995, the recorded high did not exceed 57 degrees Fahrenheit, the lowest high measured in Chattanooga in the past 71 years. NWS data also shows that on September 9, 1939, the lowest measured temperature on that day did not drop below 77 degrees, the highest low temperature measured in Chattanooga in the last 71 years.

National Weather Service data shows that the high temperature in Chattanooga on September First averages 88 degrees Fahrenheit and the high on the final day of September averages 78 degrees. The low recorded temperature in Chattanooga on September First averages 66 degrees Fahrenheit and the low temperature on the final day of September averages 55 degrees.

Chattanooga usually receives an average of 4.31 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by September Chattanooga Weather data, was 6.37 inches on September 15, 1977.