Chattanooga Metro Area, TN Climate

The Chattanooga, TN Metro Area has a humid subtropical climate with mild to cool winters and hot and humid summers. June is the warmest month of the year with an average high temperature of 87 degrees Fahrenheit, while January is the coldest month with average low temperatures around 34 degrees Fahrenheit. Precipitation is common throughout the year, particularly in the spring and summer months. Winter snowfall is generally light but some years significant snowfall occurs. The area also experiences occasional thunderstorms throughout the year, especially during the summer months.

Chattanooga Metro Area, Tennessee gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Chattanooga Metro Area averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 213 sunny days per year in Chattanooga Metro Area. The US average is 205 sunny days.

Chattanooga Metro Area gets some kind of precipitation, on average, 104 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.

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 28
Rain: averages 53 inches of rain a year
Snow: averages 2 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the Chattanooga metro area is 7.5 (10=best), which means it is one of the most pleasant places in Tennessee.

7 Summer - 6.4 Winter

May, September and October are the most pleasant months in the Chattanooga metro area, while January and December are the least comfortable months.

Climate	Chattanooga, Tennessee	United States
	52.6 in.	38.1 in.
	1.9 in.	27.8 in.
	104.1 days	106.2 days
	213 days	205 days
	88.4°	85.8°
	28.4°	21.7°
	7.5	7
	4.6	4.3
	1188 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the Chattanooga metro area with an average high temperature of 88.4°, which ranks it as about average compared to other places in Tennessee. In the Chattanooga metro area, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the Chattanooga metro area are May, September and October.

In the Chattanooga metro area, there are 34.1 days annually when the high temperature is over 90°, which is about average compared to other places in Tennessee.

January has the coldest nighttime temperatures for the Chattanooga metro area with an average of 28.4°. This is warmer than most places in Tennessee.

In the Chattanooga metro area, there are 73.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In the Chattanooga metro area, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

Humidity in the Chattanooga metro area can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are July, August and June. The humid season runs from June-September and the most comfortable months are October-May.

December is the wettest month in the Chattanooga metro area with 5.1 inches of rain, and the driest month is October with 3.3 inches. The wettest season is Spring with 29% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 52.6 inches in the Chattanooga metro area means that it is drier than most places in Tennessee.

December is the rainiest month in the Chattanooga metro area with 9.6 days of rain, and October is the driest month with only 6.6 rainy days. There are 104.1 rainy days annually in the Chattanooga metro area, which is one of the least rainy places in Tennessee. The rainiest season is Spring when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 1.9 inches in the Chattanooga metro area means that it is one of the least snowy places in Tennessee. January is the snowiest month in the Chattanooga metro area with 0.8 inches of snow, and 2 months of the year have significant snowfall.

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