December weather forecast
Blountville, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Blountville, Tennessee, with an average temperature varying between 32.7°F (0.4°C) and 47.1°F (8.4°C).

Temperature

In Blountville, the average high-temperature in December slightly decreases from a refreshing 55.4°F (13°C) in November to a chilly 47.1°F (8.4°C). Blountville's average low-temperature during December nights is observed to be a wintry 32.7°F (0.4°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Blountville, in December, during 13.9 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 157.8 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 5.5 days and typically aggregates up to 3.31" (84mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:24 pm EST.

Sunshine

In December, the average sunshine is 5.3h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. 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: A maximum high UV index of 2 in December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Blountville in December?

December temperatures vary between a high-temperature of 47.1°F (8.4°C) and a low-temperature of 32.7°F (0.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in December?

In Blountville, the average relative humidity in December is 78%.

How many days does it rain in December in Blountville?

In Blountville, during December, the rain falls for 13.9 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 5.5 days and typically aggregates up to 3.31" (84mm) of snow.

How much does it snow in December?

In Blountville, in December, during 5.5 snowfall days, 3.31" (84mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

In Blountville, the average day length in December is 9h and 43min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:24 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5.3h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In Blountville, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Blountville, TN

Average temperature in December - Blountville, TN
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in December: 32.7°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in December
Blountville, TN

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

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Blountville, TN

Average wind speed in December - Blountville, TN
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in December
Blountville, TN

Average humidity in December - Blountville, TN
  • Average humidity in December: 78%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August and November (74%).

Average rainfall in December
Blountville, TN

Average rainfall in December - Blountville, TN
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is February (3.54").
The driest month (with the least rainfall) is September (1.06").

Average rainfall days in December
Blountville, TN

Average rainfall days in December - Blountville, TN
  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in December
Blountville, TN

Average snowfall in December - Blountville, TN
  • Average snowfall in December: 3.31"

The month with the highest snowfall is December (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Blountville, TN

Average snowfall days in December - Blountville, TN
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (9.3 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
Blountville, TN

Average daylight in December / Average sunshine in December - Blountville, TN
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Blountville, TN

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

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is February (9.2 days).

Average UV index in December
Blountville, TN

Average UV index in December - Blountville, 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
Blountville, TN

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

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

Average visibility in December
Blountville, TN

Average visibility in December - Blountville, TN
  • Average visibility in December: 5mi

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

Blountville, Tennessee, USA

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