January Weather in Chattanooga Valley, United States

Last updated: June 24, 2025

In January, the average temperature in Chattanooga Valley, United States hovers around 6°C (43°F), with a range spanning from a chilly -13°C (9°F) to a pleasant 24°C (75°F). Expect about 99 mm (3.9 in) of precipitation over approximately 10 days, accompanied by high levels of moisture, with an average humidity of 87%.

January Temperature in Chattanooga Valley

In January in Chattanooga Valley, the average temperature is 6°C (43°F). The maximum can reach 24°C (75°F), while the minimum can drop as low as -13°C (9°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

January Weather in Chattanooga Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Chattanooga Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chattanooga Valley, January typically has an average temperature of 6°C (43°F), with highs reaching up to 24°C (75°F) and lows dropping to around -13°C (9°F).

Data source: Temperature data for Chattanooga Valley generated using information from the Copernicus Climate Change Service.

January Precipitation in Chattanooga Valley

In Chattanooga Valley in January, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.

January Precipitation Trends in Chattanooga Valley

The chart displays monthly precipitation patterns in Chattanooga Valley, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Chattanooga Valley, January typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Chattanooga Valley

In Chattanooga Valley in January, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

January Average Humidity in Chattanooga Valley

This chart illustrates the average monthly humidity levels in Chattanooga Valley, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Chattanooga Valley is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Chattanooga Valley

In Chattanooga Valley in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Chattanooga Valley for better planning.

Maximum UV Index Levels in Chattanooga Valley for January

The chart shows the monthly maximum UV Index (UVI) for Chattanooga Valley in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Chattanooga Valley typically reaches 4, which falls under the moderate exposure category.

Data source: Chattanooga Valley January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Chattanooga Valley Compares to Other Months

Weather in Chattanooga Valley varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Chattanooga Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Chattanooga Valley, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	99 mm (3.9 inches)	87%	moderate
February Weather	9°C (48°F)	171 mm (6.7 inches)	87%	high
March Weather	12°C (54°F)	169 mm (6.7 inches)	85%	very high
April Weather	16°C (60°F)	156 mm (6.2 inches)	82%	very high
May Weather	21°C (70°F)	96 mm (3.8 inches)	83%	extreme
June Weather	24°C (76°F)	120 mm (4.7 inches)	82%	extreme
July Weather	26°C (80°F)	106 mm (4.2 inches)	78%	extreme
August Weather	26°C (78°F)	121 mm (4.8 inches)	67%	very high
September Weather	24°C (75°F)	106 mm (4.2 inches)	64%	very high
October Weather	18°C (65°F)	133 mm (5.2 inches)	74%	high
November Weather	10°C (50°F)	72 mm (2.8 inches)	87%	moderate
December Weather	8°C (46°F)	139 mm (5.5 inches)	88%	moderate