December weather forecast
Arline, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Arline, Tennessee, with an average temperature varying between 35.4°F (1.9°C) and 49.1°F (9.5°C).

Temperature

December signifies a gentle decline in Arline's average high-temperature, easing from a moderate 57°F (13.9°C) in November to a frosty 49.1°F (9.5°C). Throughout December, Arline's nights cool down to an average of 35.4°F (1.9°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Arline, during December, the rain falls for 14.2 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Arline. In Arline, Tennessee, in December, snow falls for 3.5 days, with typically accumulated 0.83" (21mm) of snow. In Arline, during the entire year, snow falls for 19 days and aggregates up to 5.59" (142mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of December, in Arline, sunrise is at 7:46 am and sunset at 5:33 pm EST.

Sunshine

In Arline, the average sunshine in December is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Arline. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Arline in December?

The high-temperature during December is 49.1°F (9.5°C) and the low-temperature is 35.4°F (1.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 86°F (30°C).

What is the most humid month?

The most humid month in Arline is December, with an average relative humidity of 79%.

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December?

In Arline, in December, it is raining for 14.2 days, with typically 3.86" (98mm) of accumulated precipitation.

How many days does it snow in December?

In Arline, in December, during 3.5 snowfall days, 0.83" (21mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year.

How many hours of daylight does Arline have in December?

In December, the average day length in Arline is 9h and 47min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:33 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.2h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Arline, TN

Average temperature in December - Arline, TN
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in December
Arline, TN

Average pressure in December - Arline, TN
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Arline, TN

Average wind speed in December - Arline, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in December
Arline, TN

Average humidity in December - Arline, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Arline, TN

Average rainfall in December - Arline, TN
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Arline, TN

Average rainfall days in December - Arline, TN
  • Average rainfall days in December: 14.2 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in December
Arline, TN

Average snowfall in December - Arline, TN
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Arline, TN

Average snowfall days in December - Arline, TN
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Arline, TN

Average daylight in December / Average sunshine in December - Arline, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Arline, TN

Average sunshine days in December - Arline, TN
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Arline, TN

Average UV index in December - Arline, 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, February and December (UV index 2).

Average cloud cover in December
Arline, TN

Average cloud cover in December - Arline, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Arline, TN

Average visibility in December - Arline, TN
  • Average visibility in December: 6mi

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

Arline, Tennessee, USA

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