Chattanooga, TN has a humid subtropical climate with warm and humid summers and mild winters. The average high temperature in July is 87°F (31°C) and the average low temperature in January is 33°F (1°C). Precipitation is fairly consistent throughout the year, averaging around 50 inches (127 cm) per year. Snowfall can be quite heavy in winter, sometimes reaching up to 15 inches (38 cm). Despite its location in the South, Chattanooga does experience some cooler temperatures during winter months due to its higher elevation of 675 feet (206 m).
Chattanooga, Tennessee gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chattanooga averages 2 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 207 sunny days per year in Chattanooga. The US average is 205 sunny days.
Chattanooga gets some kind of precipitation, on average, 99 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Summer High: the July high is around 89 degrees
Winter Low: the January low is 29
Rain: averages 51 inches of rain a year
Snow: averages 2 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Chattanooga is 7.5 (10=best), which means it is one of the most pleasant places in Tennessee.
6.8 / 6.5
Summer / Winter
May, September and October are the most pleasant months in Chattanooga, while January and July are the least comfortable months.