January weather forecast
Chattanooga, TN

Panorama of the area of Chattanooga, Tennessee
Panorama of the area of Chattanooga, Tennessee

Weather in January

January, the same as December, in Chattanooga, Tennessee, is another chilly winter month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 46°F (7.8°C).

Temperature

January is the coldest month, with an average high-temperature of 46°F (7.8°C) and an average low-temperature of 30.7°F (-0.7°C).

Humidity

In Chattanooga, the average relative humidity in January is 76%.

Rainfall

In Chattanooga, during January, the rain falls for 13.2 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Chattanooga, during the entire year, the rain falls for 174.4 days and collects up to 41.14" (1045mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In January, in Chattanooga, it is snowing for 4.1 days. Throughout January, 0.87" (22mm) of snow is accumulated. In Chattanooga, during the entire year, snow falls for 13.2 days and aggregates up to 4.17" (106mm) of snow.

Daylight

The average length of the day in January is 10h and 7min.
On the first day of the month, sunrise is at 7:49 am and sunset at 5:40 pm. On the last day of January, sunrise is at 7:40 am and sunset at 6:08 pm EST.

Sunshine

In January, the average sunshine in Chattanooga is 5.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Chattanooga. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Chattanooga?

With an average high-temperature of 46°F (7.8°C) and an average low-temperature of 30.7°F (-0.7°C), January is the coldest month in Chattanooga.

What is the temperature in January in Chattanooga?

In January, in Chattanooga, the average high-temperature is 46°F (7.8°C), and the average low-temperature is 30.7°F (-0.7°C).

What is the average humidity in January in Chattanooga?

In Chattanooga, Tennessee, the average relative humidity in January is 76%.

How much does it rain in Chattanooga in January?

In Chattanooga, Tennessee, during January, the rain falls for 13.2 days and regularly aggregates up to 3.62" (92mm) of precipitation.

How much does it snow in Chattanooga in January?

In Chattanooga, during January, snow falls for 4.1 days and regularly aggregates up to 0.87" (22mm) of snow.

How many hours of daylight does Chattanooga have in January?

In January, the average day length in Chattanooga is 10h and 7min.

When is the sunrise / sunset in January in Chattanooga?

On the first day of January in Chattanooga, Tennessee, sunrise is at 7:49 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 6:08 pm EST.

How long on average sun shines in January in Chattanooga?

In January, the average sunshine duration in Chattanooga is 5.3h.

What is the month with the lowest UV index in Chattanooga?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Chattanooga, Tennessee.

What is the UV index intensity in January in Chattanooga?

In January, the average daily maximum UV index in Chattanooga is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Chattanooga, TN

Average temperature in January - Chattanooga, TN
  • Average high temperature in January: 46°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in January: 30.7°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in January
Chattanooga, TN

Average pressure in January - Chattanooga, TN
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in January
Chattanooga, TN

Average wind speed in January - Chattanooga, TN
  • Average wind speed in January: 6.2mph

The windiest month (with the highest average wind speed) is February (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in January
Chattanooga, TN

Average humidity in January - Chattanooga, TN
  • Average humidity in January: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, October and November (75%).

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Average rainfall in January
Chattanooga, TN

Average rainfall in January - Chattanooga, TN
  • Average rainfall in January: 3.62"

The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is September (2.56").

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Average rainfall days in January
Chattanooga, TN

Average rainfall days in January - Chattanooga, TN
  • Average rainfall days in January: 13.2 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.8 days).

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Average snowfall in January
Chattanooga, TN

Average snowfall in January - Chattanooga, TN
  • Average snowfall in January: 0.87"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Chattanooga, TN

Average snowfall days in January - Chattanooga, TN
  • Average snowfall days in January: 4.1 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Chattanooga, TN

Average daylight in January / Average sunshine in January - Chattanooga, TN
  • Average daylight in January: 10h and 7min

The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 51min).

  • Average sunshine in January: 5h and 18min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in January
Chattanooga, TN

Average sunshine days in January - Chattanooga, TN
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in January
Chattanooga, TN

Average UV index in January - Chattanooga, TN
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Chattanooga, TN

Average cloud cover in January - Chattanooga, TN
  • Average cloud cover in January: 48

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in January
Chattanooga, TN

Average visibility in January - Chattanooga, TN
  • Average visibility in January: 5mi

The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).

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