December weather forecast
Smithville, TN

Share

Weather in December

The first month of the winter, December, is still a chilly month in Smithville, Tennessee, with an average temperature ranging between max 48.9°F (9.4°C) and min 35.1°F (1.7°C).

Temperature

During the shift to December, Smithville records a mild decrease in average high-temperature, moving from a moderate 56.7°F (13.7°C) in November to a chilly 48.9°F (9.4°C). In Smithville, in December, the average low-temperature is a wintry 35.1°F (1.7°C).

Humidity

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

Rainfall

In Smithville, in December, it is raining for 13.2 days, with typically 3.7" (94mm) of accumulated precipitation. In Smithville, during the entire year, the rain falls for 184.1 days and collects up to 45.87" (1165mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Smithville, during December, snow falls for 3.4 days and regularly aggregates up to 0.94" (24mm) of snow. In Smithville, Tennessee, during the entire year, snow falls for 18.9 days and aggregates up to 5.75" (146mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:35 am and sunset at 4:29 pm. On the last day of December, sunrise is at 6:53 am and sunset at 4:39 pm CST.

Sunshine

In Smithville, the average sunshine in December is 4.7h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

December temperatures vary between a high-temperature of 48.9°F (9.4°C) and a low-temperature of 35.1°F (1.7°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 84.2°F (29°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in December?

In Smithville, during December, the rain falls for 13.2 days and regularly aggregates up to 3.7" (94mm) of precipitation.

How many days does it snow in December in Smithville?

In Smithville, Tennessee, in December, snow falls for 3.4 days, with typically accumulated 0.94" (24mm) of snow.

What is the month with the shortest days in Smithville?

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

How many hours of daylight does Smithville have in December?

The average day length in December is 9h and 46min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:35 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:39 pm CST.

How long on average sun shines in December?

In Smithville, the average sunshine duration in December is 4.7h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Smithville, TN

Average temperature in December - Smithville, TN
  • Average high temperature in December: 48.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.4°F).

  • Average low temperature in December: 35.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in December
Smithville, TN

Average pressure in December - Smithville, 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 (29.97"Hg).

Average wind speed in December
Smithville, TN

Average wind speed in December - Smithville, TN
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Smithville, TN

Average humidity in December - Smithville, TN
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in December
Smithville, TN

Average rainfall in December - Smithville, TN
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is July (4.96").
The driest month (with the least rainfall) is September (2.64").

Average rainfall days in December
Smithville, TN

Average rainfall days in December - Smithville, TN
  • Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in December
Smithville, TN

Average snowfall in December - Smithville, TN
  • Average snowfall in December: 0.94"

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

Average snowfall days in December
Smithville, TN

Average snowfall days in December - Smithville, TN
  • Average snowfall days in December: 3.4 days

The months with the highest number of snowfall days are January and February (5.6 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
Smithville, TN

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

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 48min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in December
Smithville, TN

Average sunshine days in December - Smithville, TN
  • Average sunshine days in December: 15.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (8 days).

Average UV index in December
Smithville, TN

Average UV index in December - Smithville, 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
Smithville, TN

Average cloud cover in December - Smithville, TN
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Smithville, TN

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

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

Smithville, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location