December Weather forecast - Winter forecast

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

Panorama of the area of Chattanooga, Tennessee

Weather in December

December, the first month of the winter in Chattanooga, is also a fresh month, with an average temperature fluctuating between 50.2°F (10.1°C) and 36.3°F (2.4°C).

Temperature

In Chattanooga, the average high-temperature in December marginally drops from a moderate 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). In December, the average low-temperature is 36.3°F (2.4°C).

Humidity

With an average relative humidity of 80%, December is the most humid month.

Rainfall

The month with the most rainfall in Chattanooga is December, when the rain falls for 13.7 days and typically aggregates up to 4.37" (111mm) of precipitation.

Snowfall

Months with snowfall in Chattanooga are January through April, November and December. In Chattanooga, Tennessee, during December, snow falls for 2.2 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, in Chattanooga, there are 13.2 snowfall days, and 4.17" (106mm) of snow is accumulated.

Daylight

The month with the shortest days in Chattanooga is December, with an average of 9h and 51min of daylight.
On the first day of December in Chattanooga, sunrise is at 7:30 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:39 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 4.9h of sunshine.

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 minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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 temperature in December in Chattanooga?

In December, in Chattanooga, the average high-temperature is 50.2°F (10.1°C), and the average low-temperature is 36.3°F (2.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 87.8°F (31°C).

What is the most humid month in Chattanooga?

December is the most humid month in Chattanooga, Tennessee, with an average relative humidity of 80%.

What is the average humidity in December in Chattanooga?

In Chattanooga, Tennessee, the average relative humidity in December is 80%.

What is the rainiest month in Chattanooga?

December is the month with the most rainfall in Chattanooga, Tennessee. Rain falls for 13.7 days and accumulates 4.37" (111mm) of precipitation.

How many days does it rain in December in Chattanooga?

In Chattanooga, in December, it is raining for 13.7 days, with typically 4.37" (111mm) of accumulated precipitation.

How much does it snow in Chattanooga in December?

In Chattanooga, in December, snow falls for 2.2 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days in Chattanooga?

December has the shortest days of the year in Chattanooga, with an average of 9h and 51min of daylight.

How many hours of daylight does Chattanooga have in December?

In December, the average day length in Chattanooga, Tennessee, is 9h and 51min.

When is the sunrise / sunset in December in Chattanooga?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 5:29 pm. On the last day of the month, in Chattanooga, Tennessee, sunrise is at 7:49 am and sunset at 5:39 pm EST.

What is the month with the least sunshine in Chattanooga?

December has the least sunshine of the year in Chattanooga, with an average of 4.9h of sunshine.

How many hours of sunshine does Chattanooga have in December?

In Chattanooga, Tennessee, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index in Chattanooga?

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

How high is the UV index in December in Chattanooga?

In Chattanooga, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

57.6°F 14.2°C

50.2°F 10.1°C

46°F 7.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6mph 9.7km/h

6.2mph 10km/h

6.6mph 10.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

18.2

15.1

15.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Chattanooga, TN

Average high temperature in December: 50.2°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 December: 36.3°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 December
Chattanooga, TN

Average pressure in December: 30.15"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 December
Chattanooga, TN

Average wind speed in December: 5.7mph

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 December
Chattanooga, TN

Average humidity in December: 80%

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 December
Chattanooga, TN

Average rainfall in December: 4.37"

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 December
Chattanooga, TN

Average rainfall days in December: 13.7 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 December
Chattanooga, TN

Average snowfall in December: 0.59"

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 December
Chattanooga, TN

Average snowfall days in December: 2.2 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 December /
Average sunshine in December
Chattanooga, TN

Average daylight in December: 9h and 51min

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 December: 4h and 54min

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 December
Chattanooga, TN

Average sunshine days in December: 15.1 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 December
Chattanooga, TN

Average UV index in December: 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 December
Chattanooga, TN

Average cloud cover in December: 50

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 December
Chattanooga, TN

Average visibility in December: 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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December weather forecast
Chattanooga, TN

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