December weather forecast
Echo Valley, TN

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Weather in December

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

Temperature

Echo Valley observes a small decrease in the average high-temperature with the arrival of December, falling from November's refreshing 57°F (13.9°C) to a chilly 49.1°F (9.5°C). In Echo Valley, an average nighttime temperature of 35.4°F (1.9°C) is expected during December.

Humidity

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

Rainfall

In Echo Valley, in December, it is raining for 14.2 days, with typically 3.86" (98mm) of accumulated 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 Echo Valley. In December, it is snowing for 3.5 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, there are 19 snowfall days, and 5.59" (142mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
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, sunrise is at 7:46 am and sunset at 5:32 pm EST.

Sunshine

In Echo Valley, 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. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

In Echo Valley, 49.1°F (9.5°C) is the average high-temperature and 35.4°F (1.9°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is computed to be 86°F (30°C).

What is the most humid month?

December is the most humid month in Echo Valley, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Echo Valley, in December, during 14.2 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, it is snowing for 3.5 days. Throughout December, 0.83" (21mm) of snow is accumulated.

What is the month with the shortest days in Echo Valley?

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

How many hours of daylight does Echo Valley have in December?

In December, the average day length is 9h and 46min.

When is the sunrise / 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 5:32 pm EST.

How long on average sun shines in December?

In Echo Valley, the average sunshine duration in December is 5.2h.

What are the months with the lowest UV index?

The months with the lowest UV index in Echo Valley 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 reading of 2, and below, represents 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
Echo Valley, TN

Average temperature in December - Echo Valley, 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
Echo Valley, TN

Average pressure in December - Echo Valley, 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
Echo Valley, TN

Average wind speed in December - Echo Valley, 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
Echo Valley, TN

Average humidity in December - Echo Valley, 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
Echo Valley, TN

Average rainfall in December - Echo Valley, 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
Echo Valley, TN

Average rainfall days in December - Echo Valley, 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
Echo Valley, TN

Average snowfall in December - Echo Valley, 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
Echo Valley, TN

Average snowfall days in December - Echo Valley, 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
Echo Valley, TN

Average daylight in December / Average sunshine in December - Echo Valley, 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: 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
Echo Valley, TN

Average sunshine days in December - Echo Valley, 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
Echo Valley, TN

Average UV index in December - Echo Valley, 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
Echo Valley, TN

Average cloud cover in December - Echo Valley, 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
Echo Valley, TN

Average visibility in December - Echo Valley, 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).

Echo Valley, Tennessee, USA

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