Located in the southeastern part of Tennessee, Chattanooga enjoys a humid subtropical climate.
Summers are hot and muggy, while winters are short, cold, and wet.
Throughout the year, temperatures usually range from 33°F to 89°F and rarely fall below 19°F or rise above 96°F.
Precipitation in Chattanooga is consistent year-round, adding up to about 50 inches annually.
December is typically the wettest month, with around 4.37 inches of rainfall.
Snowfall can occasionally be heavy, contributing to the diverse weather conditions that characterize the Chattanooga climate.
The city experiences partly cloudy skies most of the year, providing a mix of sunny and overcast days.
With its mild winters and warm summers, Chattanooga’s climate offers a pleasant balance for residents and visitors alike.
For more detailed monthly weather information, check out Yearly & Monthly weather for Chattanooga.
Average Temperature in Chattanooga, Tennessee
Chattanooga, Tennessee, experiences a variety of temperatures throughout the year.
In January, the average high temperature is around 51°F, while the low temperature can drop to 32°F at night.
February sees a slight increase, with highs averaging 56°F and lows around 36°F.
March and April bring warmer weather. March has highs of 64°F and lows of 42°F.
By April, the temperatures reach an average high of 72°F and a low of 50°F.
In May, daytime temperatures often peak at 79°F, while nighttime temperatures can be around 58°F.
During the summer months, June reaches highs of 86°F and lows of 66°F.
The temperatures in July soar to an average high of 89°F, making it one of the hottest months.
Nights are cooler, with lows around 69°F.
August has a similar pattern, with highs of 88°F and lows of 68°F.
The climate begins to cool in September, with average daytime highs of 82°F and lows of 61°F.
October continues this trend with highs of 73°F and nighttime lows of 49°F.
In November, temperatures drop further. Daytime highs average 61°F, with lows around 40°F.
Meanwhile, December is both cooler and wetter, with averages of 52°F during the day and 33°F at night.
For a detailed view of temperatures, refer to ChaseDay’s temperature articles. This site offers more insights on temperature trends and patterns in various locations.
Average Precipitation in Chattanooga, Tennessee
Chattanooga experiences varying levels of precipitation throughout the year, including both rainfall and snow. The wettest period occurs in specific months, highlighting a pattern in the city’s climate.
Average Rainfall in Chattanooga, Tennessee
Chattanooga’s rainy season extends from March through August, with July being particularly wet.
During this month, the city averages 12.9 days of rainfall with at least 0.04 inches of precipitation.
December also sees significant rainfall, accumulating around 4.37 inches over approximately 13.7 days.
Interestingly, March holds the record for the highest monthly total, reaching up to 16.32 inches in 1980.
On average, Chattanooga receives about 53 inches of rain annually.
Rainfall contributes to the lush greenery and vibrant nature found in the region.
Average Snow in Chattanooga, Tennessee
Snowfall in Chattanooga is less frequent compared to rainfall. The winter season typically brings small amounts of snow.
The city’s snowiest records include January 1985 with notable low temperatures.
Chattanooga’s snowfall averages around 1 inch per year, which can vary.
Snow and icy conditions are covered in detail in various articles.
Although rare, the presence of snow can disrupt travel and daily life, requiring local preparedness.
The gradual accumulation and clearing of snow are critical for safety and transportation.
Despite its rarity, snow adds a scenic beauty to Chattanooga’s winters, contrasting with the city’s predominantly rainy climate throughout the year.
Average Sun in Chattanooga, Tennessee
Chattanooga enjoys a moderate amount of sunny days throughout the year. The balance of sunshine and clouds affects the daily solar energy received.
Average Daily Shortwave Solar Energy in Chattanooga, Tennessee
On average, Chattanooga experiences varied amounts of shortwave solar energy each day.
During peak summer months, sunny days allow for longer hours of sunshine. This results in higher amounts of solar energy, valuable for solar power generation.
In contrast, winter months see fewer hours of sunlight due to shorter days and increased cloud cover.
Despite having more clouds, total hours of sun still contribute significant solar energy daily.
The variation in sunshine hours impacts the overall energy that reaches the ground, essential for understanding solar power potential.
Visit Climate and Average Weather Year Round in Chattanooga for more detailed weather information.
Average Humidity in Chattanooga, Tennessee
Humidity in Chattanooga varies throughout the year. The average annual percentage of humidity is 71%.
- January: 75%
- February: 71%
- March: 69%
- April: 63%
- May: 67%
- June: 72%
- July: 76%
- August: 76%
- September: 77%
- October: 73%
- November: 72%
- December: 74%
September is the most humid month, with an average relative humidity of 77%.
Meanwhile, April has the least humidity, averaging 63%.
Dew point levels often indicate how comfortable the air feels.
A higher dew point means the air feels more humid. Chattanooga sees varying dew points:
- Winter: Lower dew points make the air feel colder and drier.
- Summer: Higher dew points mean the air feels warmer and more humid.
Understanding average humidity is important for residents and visitors. High humidity can impact comfort and health, especially during the summer.
The highest and lowest relative humidity values are:
- Highest Relative Humidity: 87%
- Lowest Relative Humidity: 53%
These values give a sense of how humid it can get on any given day.
Average Wind in Chattanooga, Tennessee
Chattanooga experiences notable variations in wind speed throughout the year.
The windier months stretch from late October to mid-May.
During this period, the average wind speed exceeds 4.4 miles per hour.
March is the windiest month, with an average hourly wind speed reaching 5.5 miles per hour.
For the calmer months, from mid-May to late October, wind speeds typically drop below 4.4 miles per hour.
Wind patterns in Chattanooga can be observed and detailed further through data from local weather stations, including statistics on wind direction and strength.
Chattanooga’s wind data is often sourced from observations at Chattanooga Metropolitan Airport. This ensures accurate historical weather records.
Average Air Quality in Chattanooga, Tennessee
Chattanooga’s air quality varies throughout the year. Most days, the air quality falls within the “Good” to “Moderate” range. These levels are suitable for most outdoor activities.
- Good (0-50 AQI): Air quality is satisfactory, and air pollution poses little or no risk.
- Moderate (51-100 AQI): Air quality is acceptable; however, some pollutants may be a concern for a few people.
The current air quality is often excellent, allowing residents to enjoy outdoor activities.
Factors Affecting Air Quality
Air quality can be affected by various factors such as:
- Weather Conditions: Hot and humid weather can sometimes increase pollutants in the air.
- Wind: Wind direction and speed also play a critical role. Strong winds can help disperse pollutants, improving air quality.
Measuring Air Quality
Chattanooga utilizes several air quality monitoring stations. These stations measure particulate matter (PM2.5) and other pollutants.
According to IQAir, here are some measurement sites:
- Riverside
- East Martin Luther King Boulevard
- Houston Street
- River Chase Road
Visibility and Pressure
Visibility in Chattanooga can be affected by air pollution, reducing how far one can see. High levels of particulate matter can make the air appear hazy.
Atmospheric pressure also influences air quality.
Higher pressure often leads to better air quality, while lower pressure can trap pollutants near the ground, worsening air quality.
Monitoring these factors helps residents understand and adapt to changing air quality conditions.
Topography of Chattanooga, Tennessee
Chattanooga is located in southeastern Tennessee and lies at the edge of the Appalachian Mountains.
The city is situated in a valley, bordered by the Tennessee River.
Chattanooga sits at an elevation of about 676 feet above sea level. This allows for beautiful, rolling terrain and varied landscapes.
Due to its position, Chattanooga experiences a diverse range of elevation changes within a relatively small area. The city coordinates are approximately latitude 35.0456° N and longitude 85.3097° W.
The surrounding area includes several notable geographical features:
- Lookout Mountain: A prominent landmark known for its steep cliffs and caves.
- Signal Mountain: Offers stunning views of the Tennessee River and the surrounding valley.
Chattanooga’s terrain includes riverbanks, hills, and flatlands. This diverse topography makes it attractive for outdoor activities like hiking and climbing.
For visual representation, you can refer to these topographic maps of Chattanooga.
Extreme Weather Events that Occur in Chattanooga, Tennessee
Chattanooga experiences a range of extreme weather events throughout the year.
Tornadoes are one of the most significant events, with the region occasionally battered by severe storms.
For instance, an F2 tornado once ripped a 5-mile path through Madison, injuring seven people.
Flooding can also be problematic, particularly during the wettest month, usually resulting from heavy rainfall.
This contributes to the increased water levels in local rivers and streams, leading to potential property damage and disruptions.
Hail is another weather phenomenon that occasionally hits Chattanooga.
Hailstorms can cause significant damage to vehicles, buildings, and crops, making them a noteworthy weather event in the area.
In terms of temperatures, Chattanooga’s climate features hot, muggy summers and short, very cold winters.
The hottest month tends to be July, with temperatures often soaring to 89°F.
During the winter, January is the coldest month, with temperatures typically dropping to 33°F.
On rare occasions, the thermometer can dip below 19°F, making it crucial for residents to prepare for the bitter cold.
Apart from these, severe storms are common, contributing to both flooding and tornado occurrences.
These storms add to the extreme weather profile of the area, causing various challenges for the community.
The climate cycle includes both dry and wet seasons.
The wettest month usually brings torrential rains, while the driest month helps balance out the annual precipitation.
For more detailed climate information about Chattanooga, visit the Climate and Average Weather Year Round in Chattanooga.
Best Time of the Year to Visit Chattanooga, Tennessee
Chattanooga, Tennessee, offers a variety of experiences depending on the time of year. Each season has its unique charm, making it a year-round destination.
What is Chattanooga, Tennessee Like in Spring
Spring in Chattanooga is mild and pleasant. Average temperatures range from 45°F to 75°F.
This is an ideal time for outdoor activities as the weather is comfortable.
You can enjoy hiking, biking, and exploring the scenic beauty of the city during these months.
The Tennessee River and surrounding areas come alive with blooming flowers and greenery.
Festivals and events such as the Chattanooga Film Festival often take place in spring, offering entertainment and cultural experiences.
The tourist crowds are moderate, making it a good time to visit without encountering peak-season rush.
What is Chattanooga, Tennessee Like in Summer
Summers in Chattanooga are warm and humid.
Temperatures can soar up to 90°F, with July being the hottest month.
The city is busiest during this period with many tourists flocking in.
Water-based activities like kayaking and river cruises are popular to beat the heat.
The Regional music festivals and open-air events also draw large crowds.
Be prepared for occasional summer showers and the potential for afternoon thunderstorms.
Early mornings and late evenings are the best times for outdoor activities to avoid the peak heat of the day.
What is Chattanooga, Tennessee Like in Fall
Fall is considered one of the best times to visit Chattanooga.
Temperatures range from 40°F to 80°F, making it a comfortable season. The changing fall foliage creates stunning scenery.
It’s a great time for hiking and exploring attractions like Lookout Mountain.
Crowds are thinner compared to summer, providing a more relaxed experience.
Outdoor events and festivals continue during the fall, making it a lively season.
Many visitors enjoy scenic drives and visiting nearby parks to witness the vibrant autumn colors.
What is Chattanooga, Tennessee Like in Winter
Winters in Chattanooga are mild compared to northern cities. Temperatures average between 30°F and 50°F.
The city rarely sees snow, making it easy to get around.
Winter is a quieter season for tourism, so it’s perfect for those seeking a peaceful visit.
Indoor activities like exploring museums and the Tennessee Aquarium are popular.
Holiday events and seasonal decorations add charm to the city. It’s a great time for those who prefer cooler weather without the extremes of northern winters.